Home page of the microscope service parts, repair and spare parts online catalog - Sermik-Oplatek Mikroskopservice Dresden f.n.n.Z

Description of this part for the microscope.

Description of this part for the microscope.

diaphragm blades individually.

Description of this part for the microscope.

Description of this part for the microscope.

Description of this part for the microscope.

Description of this part for the microscope.

anoptral, yellow band*), PhS (positive, gray band), and A (amplitude phase contrast, brown band).
- Position: Can be screwed into any position on the PZO KFL condenser

The PZO KFL condenser is a universal microscope condenser with interchangeable discs. It can be fitted with both phase contrast and darkfield discs (which can be mixed). Each disc is focused to perfectly match the microscope objective. PZO KFL = "Fluorescence Contrast" is an accessory to the PZO fluorescence kit and was originally sold with the PZO Biolar FL and PZO MB30 FL microscopes, among others. It can be used with any microscope from any manufacturer that accepts a 39.5 mm condenser, although the top lens can be replaced with a 37 mm lens.

*Note: The yellow stripe on PZO PhA phase contrast objectives sometimes turns orange over time.

Description of this part for the microscope.

anoptral, yellow band*), PhS (positive, gray band), and A (amplitude phase contrast, brown band).
- Position: Can be screwed into any position on the PZO KFL condenser

The PZO KFL condenser is a universal microscope condenser with interchangeable discs. It can be fitted with both phase contrast and darkfield discs (which can be mixed). Each disc is focused to perfectly match the microscope objective. PZO KFL = "Fluorescence Contrast" is an accessory to the PZO fluorescence kit and was originally sold with the PZO Biolar FL and PZO MB30 FL microscopes, among others. It can be used with any microscope from any manufacturer that accepts a 39.5 mm condenser, although the top lens can be replaced with a 37 mm lens.

*Note: The yellow stripe on PZO PhA phase contrast objectives sometimes turns orange over time.

Description of this part for the microscope.

anoptral, yellow band*), PhS (positive, gray band), and A (amplitude phase contrast, brown band).
- Position: Can be screwed into any position on the PZO KFL condenser

The PZO KFL condenser is a universal microscope condenser with interchangeable discs. It can be fitted with both phase contrast and darkfield discs (which can be mixed). Each disc is focused to perfectly match the microscope objective. PZO KFL = "Fluorescence Contrast" is an accessory to the PZO fluorescence kit and was originally sold with the PZO Biolar FL and PZO MB30 FL microscopes, among others. It can be used with any microscope from any manufacturer that accepts a 39.5 mm condenser, although the top lens can be replaced with a 37 mm lens.

*Note: The yellow stripe on PZO PhA phase contrast objectives sometimes turns orange over time.

Description of this part for the microscope.

PhA (negative, anoptral, yellow band*), PhS (positive, gray band), and A (amplitude phase contrast, brown band).
- Position: Can be screwed into any position on the PZO KFL condenser

The PZO KFL condenser is a universal microscope condenser with interchangeable discs. It can be fitted with both phase contrast and darkfield discs (which can be mixed). Each disc is focused to perfectly match the microscope objective. PZO KFL = "Fluorescence Contrast" is an accessory to the PZO fluorescence kit and was originally sold with the PZO Biolar FL and PZO MB30 FL microscopes, among others. It can be used with any microscope from any manufacturer that accepts a 39.5 mm condenser, although the top lens can be replaced with a 37 mm lens.

*Note: The yellow stripe on PZO PhA phase contrast objectives sometimes turns orange over time.

Description of this part for the microscope.

discs. It can be fitted with both phase contrast and darkfield discs (which can be mixed). Each disc is focused to perfectly match the microscope objective. PZO KFL = "Fluorescence Contrast" is an accessory to the PZO fluorescence kit and was originally sold with the PZO Biolar FL and PZO MB30 FL microscopes, among others. It can be used with any microscope from any manufacturer that accepts a 39.5 mm condenser, although the top lens can be replaced with a 37 mm lens.

Description of this part for the microscope.

discs. It can be fitted with both phase contrast and darkfield discs (which can be mixed). Each disc is focused to perfectly match the microscope objective. PZO KFL = "Fluorescence Contrast" is an accessory to the PZO fluorescence kit and was originally sold with the PZO Biolar FL and PZO MB30 FL microscopes, among others. It can be used with any microscope from any manufacturer that accepts a 39.5 mm condenser, although the top lens can be replaced with a 37 mm lens.

Description of this part for the microscope.

and other fluorescence microscopes from this company.

Description of this part for the microscope.

a disc with the appropriate aperture on the condenser - and this is just such a disc.

Description of this part for the microscope.

PhA (negative, anoptral, yellow stripe*), PhS (positive, gray stripe), and A (amplitude phase contrast, brown stripe).
Condenser: Compatible with PZO K3Ph, K3Ph1, KS and K4Ph condensers. Not compatible with PZO K3Phz, KFF, and KFL condensers.
It also fits the PZO KS condenser (from the PZO MB30S microscope) after installing the appropriate polarizers.

The PZO phase contrast kit can be used with any microscope from any manufacturer that accepts a 39.5 mm condenser, although the top lens can be replaced with a 37 mm lens.

*Note: The yellow stripe on PZO PhA phase contrast objectives sometimes turns orange over time.

Description of this part for the microscope.

PhA (negative, anoptral, yellow stripe*), PhS (positive, gray stripe), and A (amplitude phase contrast, brown stripe).
Condenser: Compatible with PZO K3Ph, K3Ph1, KS and K4Ph condensers. Not compatible with PZO K3Phz, KFF, and KFL condensers.
It also fits the PZO KS condenser (from the PZO MB30S microscope) after installing the appropriate polarizers.

The PZO phase contrast kit can be used with any microscope from any manufacturer that accepts a 39.5 mm condenser, although the top lens can be replaced with a 37 mm lens.

*Note: The yellow stripe on PZO PhA phase contrast objectives sometimes turns orange over time.

Description of this part for the microscope.

eyepiece
- 52 mm > 39 mm thread adapter for Olympus Camedia
- Olympus Camedia Zoom C-5000 5.0 Mpx camera

This kit allows you to take micrographs on PZO microscopes. It can be mounted either
- instead of a head on biological microscopes
- on the PZO MNT-6 trino head
- one the PZO DIC MPI2 / MPI3 / MPI5
- or on the PZO NF-SB3 L1 adapter with a T6 connector for PZO MST-130 / 131 / 132 stereo microscopes.

Description of this part for the microscope.

dovetail connection in many PZO microscopes and microscope accessories:

- PZO Biolar, MB-30 microscopes, some versions of Studar, ML-5, ML-6, and others
- PZO OE-1 and OE-4 EPI illuminators
- MPI-5 and MPI-3 DIC head
- PZO KS stereo contrast attachment
- magnification changer attachment
- photographic tubes for the PZO MNT6 trino head
- PZO MST-130/131 stereo microscope attachments (adapter for T6)

Users often install this PZO head mount on microscopes from other companies to use the PZO DIC.

Description of this part for the microscope.

Coaxial fine movement mechanism (micro adjustment) with knob
- Block mounting screws to the arm

If you need individual components from this block (e.g. one gear or just knobs) - contact us

Description of this part for the microscope.

consists of:
- an illuminator (light source)
- a "tube" containing collimating lenses and a field diaphragm
- a 90-degree angle mirror
- a light filter (clear or blue)

This offers an integrated block, also known as a "tube." It consists of:
- a metal tube with holes that acts as a heat sink, dissipating heat from the light source
- a set of lenses that collimate the illumination beam
- a field diaphragm (iris diaphragm)
- a knob that opens/closes the diaphragm

This element is the same for all lighting types, regardless of whether it's a 6V 15W bulb, a PZO OH1 (12V 100W) or a modified LED, so it fits any version of the PZO Biolar microscope:
- B
- B2
- GF
- Pol
- DIC
- EPI
- Fluoreszenz

It contains two critical components: a collimating lens that often cracks under temperature, and a field diaphragm whose blades are prone to bending.

If you need smaller - individual components from this block - contact us

Description of this part for the microscope.

without the collimating lenses.

This component is the same for all versions of the PZO Biolar microscope:
- B
- B2
- GF
- Pol
- DIC
- EPI
- Fluoreszenz

If you need smaller, individual diaphragm components (e.g., separate blades) - contact us

Description of this part for the microscope.

microscope:
- B
- Pol
- DIC
- EPI
- Fluoreszenz

Note: it likely will not fit the B2 and GF versions.

This is an original "old-time" element, coming from the dismantling of a PZO Biolar microscope, of very good quality.

Both the right and left side lining are identical.

Description of this part for the microscope.

mechanical lock
- A rack for vertical movement of the condenser holder
- A knob with a gear (pinion) for vertical movement of the condenser
- A mechanical lock to prevent excessive condenser lifting
- A central screw for securing the condenser
- Two long screws for centering the condenser

The condenser supported by the PZO Biolar microscope has a diameter of 39.5 mm.

This component is the same for all versions of the PZO Biolar microscope:
- B
- B2
- GF
- Pol
- DIC
- EPI
- Fluoreszenz

If you need smaller - individual components of this module (e.g. toothed rack, knob, screws - anything) - contact us

Description of this part for the microscope.

PZO logo and a circular illumination filter - the one offered here is colorless.

Some newer versions of the PZO Biolar microscope included a blue illumination filter mounted in the microscope base. This filter cut out the yellow color of the light emitted by the bulb, providing the user with a pleasant, near-white light.

Unfortunately, this filter is not replaceable, and when the light source is changed to a halogen or cold LED, the blue light filter becomes annoying, as the light color changes from white to blue.

If the user tries to remove the original light filter themselves, they often break either the filter or its black housing. This brings us to the point where it's worth having this part on hand - you can easily swap the blue filter for a colorless one.

NOTE - this part is originally heat-attached and held in place by melted plastic legs. After replacement, it's best to glue it in place.

This item fits the following versions of the Biolar PZO microscope:
- B
- Pol
- DIC
- EPI
- Fluoreszenz

Note - it likely will not fit the B2 or GF versions.

Description of this part for the microscope.

Biolar microscope is commonly (incorrectly) called AK11.

The component shown here is used; it's obvious that such an old mirror isn't "like new" - but it is in very good condition.

Description of this part for the microscope.

for storing, using, and quickly replacing entire sets of objectives.

For example, you can have separate turrets already equipped with the following sets of objectives:
- low magnification for observing macro objects with side illumination, without a cover glass (e.g., 2.5x / 3.2x / 5x / 8x / 10x)
- for phase contrast
- for various phase contrasts (positive, anoptral, amplitude, Zernike)
- for DIC
- for water immersion (e.g., Lomo)
- all for oil immersion (e.g., Leitz 10x Oil / 25x Oil / 40x Oil / 100x Oil)
- apochromatic for better color
- for polarization
- only high magnifications, e.g., for analyzing cell wall ornamentation (50x / 63x / 80x / 100x)
- for darkfield work (objectives with an iris diaphragm in the center)

Thanks to this , having only one microscope, we can use it for various purposes and not screw in and unscrew all the lenses manually each time.

Basic parameters:
Model: PZO RO5
Thread: RMS
Number of slots: 5
Mounting method: dovetail
Variant: glossy | mirror-finish

Description of this part for the microscope.

Length: 45 mm
Cover Glass: 0.17 mm
Immersion: Yes, oil immersion
Thread: RMS
Info: PhS = positive phase contrast (gray bar).

Fits the following PZO phase contrast condensers:
- K4Ph
- K3Ph
- K3Ph1
- KS
- KFF 2
- KFL

This objective lens is in excellent condition, with no signs of use. It's difficult to find an objective of this quality on the used parts market.

It can be used with any microscope from any manufacturer, along with a compatible phase contrast condenser. Of course, the microscope must be compatible, i.e. support RMS objectives, TL=160 mm, FL=45 mm.

Description of this part for the microscope.

transmitted or reflected light microscopes, as long as the eyepiece mounting diameter on the microscope head is 23.2 mm.

Manufacturer: PZO
Model: K15x
Magnification: 15x
Image: micrometer and X-crosshair
Mounting diameter: 23.2 mm

The eyepiece features diopter adjustment and image sharpness adjustment on a micrometer slide. The entire unit is housed in an original wooden box.

The kit includes a slide with a standard micrometer scale to calibrate this eyepiece at any magnification.

Identical K15x eyepieces were also made by other manufacturers, such as Lomo and Carl Zeiss Jena.

Description of this part for the microscope.

45 mm
Cover Glass: 0.17 mm
Immersion: no
Thread: RMS
Info: PhS = positive phase contrast (gray bar).

Fits the following PZO phase contrast condensers:
- K4Ph
- K3Ph
- K3Ph1
- KS
- KFF 2
- KFL

This objective lens is in excellent condition. It's difficult to find an objective of this quality on the used parts market.

It can be used with any microscope from any manufacturer, along with a compatible phase contrast condenser. Of course, the microscope must be compatible, i.e. support RMS objectives, TL=160 mm, FL=45 mm.

Description of this part for the microscope.

mm
Cover Glass: no
Immersion: no
Thread: RMS
Info: Ph = Zernike phase contrast (green bar).

Fits the following PZO phase contrast condensers:
- K4Ph
- K3Ph
- K3Ph1
- KS
- KFF 2
- KFL

Info: Ph (Zernike) objectives produce an exceptionally nice image with a bluish background when used with KS phase contrast condensers from the PZO MB-30S microscope.

This objective lens is in excellent condition. It's difficult to find an objective of this quality on the used parts market.

It can be used with any microscope from any manufacturer, along with a compatible phase contrast condenser. Of course, the microscope must be compatible, i.e. support RMS objectives, TL=160 mm, FL=45 mm.

Description of this part for the microscope.

40
Tube Length: 160 mm
Focal Length: 45 mm
Cover Glass: 0.17 mm
Immersion: no
Thread: RMS
Info: PhA = anoptral phase contrast (gray band).

Note: The yellow band sometimes turns orange over time.

Fits the following PZO phase contrast condensers:
- K4Ph
- K3Ph
- K3Ph1
- KS
- KFF 2
- KFL

This objective lens is in excellent condition. It's difficult to find an objective of this quality on the used parts market.

It can be used with any microscope from any manufacturer, along with a compatible phase contrast condenser. Of course, the microscope must be compatible, i.e. support RMS objectives, TL=160 mm, FL=45 mm.

Description of this part for the microscope.

40
Tube Length: 160 mm
Focal Length: 45 mm
Cover Glass: 0.17 mm
Immersion: no
Thread: RMS
Info: PhA = anoptral phase contrast (gray band).

Note: The yellow band sometimes turns orange over time.

Fits the following PZO phase contrast condensers:
- K4Ph
- K3Ph
- K3Ph1
- KS
- KFF 2
- KFL

This objective lens is in excellent condition. It's difficult to find an objective of this quality on the used parts market.

It can be used with any microscope from any manufacturer, along with a compatible phase contrast condenser. Of course, the microscope must be compatible, i.e. support RMS objectives, TL=160 mm, FL=45 mm.

Description of this part for the microscope.

24
Tube Length: 160 mm
Focal Length: 45 mm
Cover Glass: nein (-)
Immersion: no
Thread: RMS
Info: PhA = anoptral phase contrast (gray band).

Note: The yellow band sometimes turns orange over time.

Fits the following PZO phase contrast condensers:
- K4Ph
- K3Ph
- K3Ph1
- KS
- KFF 2
- KFL

This objective lens is in excellent condition. It's difficult to find an objective of this quality on the used parts market.

It can be used with any microscope from any manufacturer, along with a compatible phase contrast condenser. Of course, the microscope must be compatible, i.e. support RMS objectives, TL=160 mm, FL=45 mm.

Description of this part for the microscope.

0,24
Tube Length: 160 mm
Focal Length: 45 mm
Cover Glass: nein (0)
Immersion: no
Thread: RMS
Info: PhA = anoptral phase contrast (gray band).

Note: The yellow band sometimes turns orange over time.

Fits the following PZO phase contrast condensers:
- K4Ph
- K3Ph
- K3Ph1
- KS
- KFF 2
- KFL

This objective lens is in excellent condition. It's difficult to find an objective of this quality on the used parts market.

It can be used with any microscope from any manufacturer, along with a compatible phase contrast condenser. Of course, the microscope must be compatible, i.e. support RMS objectives, TL=160 mm, FL=45 mm.

Description of this part for the microscope.

Length: 45 mm
Cover Glass: 0.17 mm
Immersion: Yes, oil immersion
Thread: RMS
Info: PhA = anoptral phase contrast (gray band).

Note: The yellow band sometimes turns orange over time.

Fits the following PZO phase contrast condensers:
- K4Ph
- K3Ph
- K3Ph1
- KS
- KFF 2
- KFL

This objective lens is in excellent condition, with no signs of use. It's difficult to find an objective of this quality on the used parts market.

It can be used with any microscope from any manufacturer, along with a compatible phase contrast condenser. Of course, the microscope must be compatible, i.e. support RMS objectives, TL=160 mm, FL=45 mm.

Description of this part for the microscope.

type: flat, horizontal

Suitable for many microscopes from various manufacturers. For example, it fits:
- PZO Biolar microscope
- EPI PZO OE4 illuminator

NOTE - IMPORTANT - This bulb does not fit the PZO MB-30 microscope.

Description of this part for the microscope.

This part is often damaged in PZO SK8 microscope stages: because the knobs extend beyond the microscope's outline after installation, the worm shaft often bends during transport, making it difficult to straighten properly.

The PZO SK8 is a mechanical microscope stage with horizontal knobs, primarily used in PZO MB30 microscopes, ML series models, and PZO MST-130/131 stereo microscopes - but is also sometimes installed in Studar and Biolar models.

Description of this part for the microscope.

the arm is hollow inside. This hollow space is covered by a black sheet metal cover - and this is exactly this part.

This part fits the following PZO Biolar microscope versions:
- B
- B2
- Pol
- DIC
- EPI
- Fluoreszenz

Note - most likely it does not fit the GF version.

It is an original "from the era" part, coming from a disassembled PZO Biolar microscope.

Description of this part for the microscope.

maintenance (especially cleaning) of this element is required. Since PZO Biolar microscopes are 40-50 years old, it is now possible to find units without this cover, as it was lost over the years.

This metal cover also acts as a heat sink and dissipates heat from the bulb - this can sometimes be seen as discoloration on the inner surface of the metal. For this reason, replacing it with an element made of cardboard or plastic is a very bad practice.

Without this cover, contaminants can enter the optical light beam, the angled mirror, or the field diaphragm, which may, for example, cause diaphragm failure or deterioration of image quality.

This element fits the following versions of the PZO Biolar microscope:
- B
- B2
- Pol
- DIC
- EPI
- Fluoreszenz

Note - most likely it does not fit the GF version.

This is an original element, taken from the disassembly of a PZO Biolar microscope.

Description of this part for the microscope.

Monocular microscope head for a fluorescence microscope
Model: PZO MNJ-4
Mounting method: dovetail, diameter 43 mm
Supported eyepieces: 23.2 mm
Mounted filter: OG1 / GG9
For microscopes: PZO Biolar FL and PZO MB-30 FL

Why are monocular microscope heads often used in fluorescence microscopy? Fluorescence microscopy (especially older designs) produces a relatively dark image, so it is beneficial for 100% of the light beam to reach a single eye. A binocular microscope head would split the light 50% to each eye, which could result in an image that is too dark.

The barrier fluorescence filter PZO OG1 / GG9 mounted under the microscope head protects the eyes from the harmful spectrum of fluorescence illumination.

Note - there is also a PZO GG9 fluorescence filter (also available in my catalog). It is important to select the correct filters for the appropriate applications.

The OG1 / GG9 filter is a separate element that can be detached from the microscope head. It is mounted under the microscope head in a dedicated slot provided for this purpose.

Description of this part for the microscope.

for storing, using, and quickly replacing entire sets of objectives.

For example, you can have separate turrets already equipped with the following sets of objectives:
- low magnification for observing macro objects with side illumination, without a cover glass (e.g., 2.5x / 3.2x / 5x / 8x / 10x)
- for phase contrast
- for various phase contrasts (positive, anoptral, amplitude, Zernike)
- for DIC
- for water immersion (e.g., Lomo)
- all for oil immersion (e.g., Leitz 10x Oil / 25x Oil / 40x Oil / 100x Oil)
- apochromatic for better color
- for polarization
- only high magnifications, e.g., for analyzing cell wall ornamentation (50x / 63x / 80x / 100x)
- for darkfield work (objectives with an iris diaphragm in the center)

Thanks to this , having only one microscope, we can use it for various purposes and not screw in and unscrew all the lenses manually each time.

Basic parameters:
Model: PZO RO5
Thread: RMS
Number of slots: 5
Mounting method: dovetail
Variant: matte

Description of this part for the microscope.

in the terminology of PZO the name "MPI5" has two meanings, which causes some confusion:
- MPI5 is the name of a DIC microscope based on the PZO MB-30 stand, KPI-2 condenser and the DIC head model MPI3
- MPI5 is also the name of the latest DIC head that is part of the PZO UPI set (PL: Urzadzenie Polaryzacyjno-Interferencyjne)

Description of this part for the microscope.

eyepiece contains two lines in the field of view used for adjusting DIC interference fringes, but this is the only difference compared to an otherwise identical eyepiece used for adjusting phase contrast. Therefore it can be used:
- for adjusting DIC
- for adjusting phase contrast
- for observing the iris diaphragm
- for observing the filament when setting illumination according to the Köhler standard

This is one of those microscope elements for which many different names are used. Among others:
- phase telescope
- phase contrast telescope
- phase alignment telescope
- phase adjustment telescope
- phase centering telescope
- phase contrast centering telescope
- phase contrast alignment telescope
- phase contrast adjustment telescope
- centering telescope
- condenser centering telescope
- condenser alignment telescope
- condenser adjustment telescope
- alignment telescope
- adjustment telescope
- inspection telescope
- aperture viewing telescope
- back focal plane viewing telescope
- auxiliary microscope
- phase contrast auxiliary microscope
- alignment auxiliary microscope
- centering auxiliary microscope
- adjustment auxiliary microscope
- auxiliary telescope
- centering scope
- alignment scope
- phase scope
- phase viewer
- phase contrast viewer
- phase centering eyepiece
- phase contrast eyepiece
- phase alignment eyepiece
- phase telescope eyepiece
- centering eyepiece
- condenser centering eyepiece
- adjustment eyepiece
- inspection eyepiece

Description of this part for the microscope.

ring that allows correction of the vision defect of one eye and proper adjustment of image sharpness. The right eyepiece prism is integrated together with the tube.

Basic parameters:
- Type: tube with diopter correction ring
- Supported eyepiece diameter: 23.2 mm
- Included: right eyepiece prism
- For head model: PZO MND-6, both for models with black and with white housing.

This repair part (service element / replacement part) comes from a binocular head PZO MND-6 which was originally mounted on the microscopes:
- PZO Biolar DIC
- PZO Biolar B

However, because the PZO MND-6 head has a standard mounting interface typical for PZO microscopes (that is a dovetail mount with a diameter of 43 mm), this head can also be found mounted on other PZO microscopes such as:
- Studar
- MB-30

Additional information: the fluorescence microscope PZO Biolar FL was originally sold with a mono head (monocular head) - however the PZO MND6 head also fits this microscope model.

Hinweis - this tube with prism DOES NOT FIT heads that were originally sold with PZO Studar microscopes, even though these heads look very similar. Of course if a head from the Biolar model was mounted on a Studar microscope (because it fits), then this tube will be compatible, because it is a repair element for the HEAD and not for a specific microscope model.

Description of this part for the microscope.

This repair part (service element / replacement part) comes from a binocular head PZO MND-6 which was originally mounted on the microscopes:
- PZO Biolar DIC
- PZO Biolar B

However, because the PZO MND-6 head has a standard mounting interface typical for PZO microscopes (that is a dovetail mount with a diameter of 43 mm), this head can also be found mounted on other PZO microscopes such as:
- Studar
- MB-30

Additional information: the fluorescence microscope PZO Biolar FL was originally sold with a mono head (monocular head) - however the PZO MND6 head also fits this microscope model.

Description of this part for the microscope.

Supported eyepiece diameter: 23.2 mm
- Included: left eyepiece prism
- For head model: PZO MND-6, both for models with black and with white housing.

This repair part (service element / replacement part) comes from a binocular head PZO MND-6 which was originally mounted on the microscopes:
- PZO Biolar DIC
- PZO Biolar B

However, because the PZO MND-6 head has a standard mounting interface typical for PZO microscopes (that is a dovetail mount with a diameter of 43 mm), this head can also be found mounted on other PZO microscopes such as:
- Studar
- MB-30

Additional information: the fluorescence microscope PZO Biolar FL was originally sold with a mono head (monocular head) - however the PZO MND6 head also fits this microscope model.

Hinweis - this tube with prism DOES NOT FIT heads that were originally sold with PZO Studar microscopes, even though these heads look very similar. Of course if a head from the Biolar model was mounted on a Studar microscope (because it fits), then this tube will be compatible, because it is a repair element for the HEAD and not for a specific microscope model.

Description of this part for the microscope.

microscopes:
- PZO Biolar DIC
- PZO Biolar B

However, because the PZO MND-6 head has a standard mounting interface typical for PZO microscopes (that is a dovetail mount with a diameter of 43 mm), this head can also be found mounted on other PZO microscopes such as:
- Studar
- MB-30

This part may be the answer to the following problems:
- scratched PZO head housing
- how to paint a PZO head?
- how to replace a PZO head cover?
- dropped Biolar head
- dented Biolar PZO head housing

Description of this part for the microscope.

thread

Fits condensers:
- PZO KPI-2 (Pluta / Nomarski DIC)
- PZO K4Ph (phase contrast Ph, PhA, PhS, A)
- PZO K3Ph (phase contrast Ph, PhA, PhS, A)
- PZO K3Ph1 (phase contrast Ph, PhA, PhS, A)
- PZO KFL (phase contrast / darkfield for fluorescence)
- PZO KFF
- PZO K3Phz (variable phase contrast Phz)

This upper lens allows conversion of the mounting standard from PZO 39.5 mm to the 37 mm standard and the use of PZO condensers on many other microscopes, e.g. Olympus BH / CH-2 or Lomo MBB

This microscope element can solve the following issues:
- How to mount PZO DIC on a Lomo microscope?
- Can I install a PZO DIC KPI2 condenser on an Olympus CH-2 microscope?
- Can I use PZO phase contrast on my non-PZO microscope?
- Does PZO phase contrast or DIC work on a microscope with a 37 mm condenser mount?

Description of this part for the microscope.

microscope from any manufacturer that allows the use of eyepieces with a mounting diameter of 23.2 mm.

Description of this part for the microscope.

yes

This condenser fits microscopes from many manufacturers (e.g. Steindorff Berlin, Zeiss, Carl Zeiss Jena, Leitz, Kremp Wetzlar, Will Wetzlar and many others) with a condenser holder diameter of 39.5 mm.

Description of this part for the microscope.

10x
Correction: Achromat
Numerical aperture: 0.24
Tube length: 160 mm
Focal length: 45 mm
Cover glass: no
Immersion: no
Thread: RMS
Info: PI = polarization-interference objective (red ring).

Compatible with the following PZO condensers:
- PZO KPI 2
- slit condenser
PI objectives are among the components of the PZO UPI set (i.e. the so-called DIC).

VERY IMPORTANT: the marking on the objective is "PI" (in lowercase: "pi"), meaning [P]-polarization [I]-interference.
In many descriptions available on the Internet, you can find information that this is a PLAN objective. This is an ERROR caused by misinterpreting the marking as PL.

Note: another INCORRECT piece of information often found online is that these are DIC objectives. This is not true.
DIC according to Pluta (niem: DIC nach Pluta), sold by PZO, achieves the DIC effect (i.e. a 3D relief image) using standard achromatic PZO objectives (and not only those). Objectives marked PI with a red ring are not required for this.

It can be used with any microscope from any manufacturer that supports RMS objectives, TL=160 mm, FL=45 mm.

Description of this part for the microscope.

eyepieces can be used with microscopes from any manufacturer, as long as the microscope supports eyepieces with a mounting diameter of 23.2 mm.

Description of this part for the microscope.

microscopes from any manufacturer, as long as the microscope supports eyepieces with a mounting diameter of 23.2 mm.

Description of this part for the microscope.

condenser fits microscopes from many manufacturers (e.g. Lomo, Carl Zeiss Jena, Olympus and many others) with a condenser holder diameter of 37 mm.

Description of this part for the microscope.

diffuser)
- blue
- yellow
- green

New (usually Chinese) microscope filters are sometimes not even made of glass. And even if they are made of glass - you may encounter scandalous examples where the glass is only surface-colored. Unfortunately, cheap colored glass filters may not be internally homogeneous and can cause light refraction distortions.

This filter set by PZO was originally sold together with the PZO Biolar microscope. It was manufactured in the 1970s (and certainly before 1977), so these are optical glasses that are about half a century old! They have never been used until now (this is so-called NOS - New Old Stock), therefore these are excellent old-class optical glasses of the highest quality.

Filters with a 32 mm diameter are used - and can be used - in microscopes from various manufacturers:
- Carl Zeiss Jena
- Zeiss West Germany
- Eschenbach
- Meopta
- Nikon
- ROW
- Leitz Wetzlar
- Wild
- Hund
- Kosmos
- and many others

Important - popular microscopes by Lomo (for example Lomo Biolam) have a 33 mm filter holder, so the filters shown here have too small a diameter and may fall out from some Lomo holders.

Description of this part for the microscope.

PZO Biolar P (Pol)
- PZO Biolar FL (Fluorescence)

The function of this component is to reflect light coming from the microscope base vertically upward so that, after passing through the specimen slide and the objective, it reaches the eyepieces and ultimately the user's eyes.

This cast component bears the marking "AK11", and this designation is commonly used on the secondary market to identify this particular angle mirror. However, it is not a part number, because the marking "AK11" can also be found on other PZO microscope components, which may lead to confusion. It is very likely that the source of this confusion is the attempt to compare PZO metal components with those used in Carl Zeiss Jena microscopes, where cast parts are marked with numbers in the format "Si10 CZ xxxxx". This may incorrectly lead people to assume that PZO used a similar numbering system.

Replacement of the angle mirror in PZO Biolar microscopes may be necessary in the following situations:
- if the mirror has become heavily scratched due to improper cleaning (minor scratches are usually not visible during normal use)
- if the silver reflective coating of the installed mirror becomes oxidized
- if the mirror becomes damaged, chipped, or cracked, for example after coming loose from its mounting

Description of this part for the microscope.

intended for so-called "thick" objectives
Thread in the cap: no, the cap of this objective case does not contain a thread for attaching an RMS objective

This objective case can be used to store so-called "short" objectives (DIN 33 mm), longer objectives (DIN 37 mm), and long objectives (DIN 45 mm), provided they are not the so-called "thick" type.

For PZO objectives, it can accommodate all standard achromatic objectives as well as all phase contrast objectives. Some unusual PZO microscope objectives do not fit inside, for example the 100x PI objective (with a red ring).

Various names are used on the secondary market for a microscope objective case, including:
- objective case
- microscope objective case
- objective container
- microscope objective container
- objective storage case
- objective storage container
- objective box
- objective storage box
- protective objective case
- objective lens case
- objective lens container
- dust protection case
- transport case for microscope objectives
- microscope objective holder case
- storage canister for microscope objectives

Each case has the PZO logo on its cap. Caps may be black, white, or grey.

Although this case is of greatest interest to users and collectors of objectives made by the Polish manufacturer PZO, it can of course be used to store objectives from any manufacturer.

Description of this part for the microscope.

and serve two main purposes:
- they allow the user to comfortably rest their head against the eyepieces, reducing neck strain during prolonged microscope work (this is not possible with soft rubber eyecups)
- they block stray light entering from the sides, reducing reflections and improving image contrast

This offer includes 2 (two) pieces, i.e. one pair.

A few quick facts:
- these eyecups fit PZO eyepieces only
- these eyecups fit only PZO eyepieces with a mounting diameter of 23.2 mm
- these eyecups DO NOT FIT older PZO eyepieces with a knurled outer edge - an example of such eyepieces can be seen in the last gallery photograph
- the last gallery photograph shows an example of these eyecups installed on microscope eyepieces

Important: no dimensions are provided here. These eyecups fit only 23.2 mm microscope eyepieces manufactured by PZO (PZO Poland / PZO Warszawa). They do not fit microscope eyepieces made by other manufacturers. If a microscope made by another manufacturer (e.g. Lomo Biolam) uses PZO eyepieces, these eyecups will fit. If a PZO microscope (e.g. PZO Biolar) uses eyepieces made by another manufacturer (e.g. Carl Zeiss Jena), these eyecups will not fit even though the microscope itself is made by PZO. These eyecups fit the eyepieces - not a specific microscope.

Description of this part for the microscope.

10x
Correction: Achromat
Numerical aperture N.A.: 0.24
Tube length: 160 mm
Parfocal length: 45 mm
Cover glass: not required, but may be used
Immersion: no
Thread: RMS
Info: Ph = Zernike phase contrast (green ring).

Compatible with the following phase contrast condensers:
- PZO K4Ph
- PZO K3Ph
- PZO K3Ph1
- PZO KS
- PZO KFF 2
- PZO KFL
- and even PZO K3PhZ

Here https://www.facebook.com/photo/?fbid=1262188377207557&set=a.462747092529893 you can see a very interesting test. It shows that if you use this PZO objective with the green ring (i.e. Zernike phase contrast) together with light-polarizing condensers (i.e. PZO KS or PZO K3PhZ), you will obtain an interesting blue background effect.

This objective can be used with any microscope from any manufacturer together with a compatible phase contrast condenser. Naturally, the microscope must support RMS objectives, TL=160 mm and FL=45 mm.

Description of this part for the microscope.

small drops of adhesive.

The nameplate fits all microscopes of the Biolar series based on the PZO Biolar B stand:
- PZO Biolar B
- PZO Biolar DIC
- PZO Biolar FL
- PZO Biolar Pol
- and all other variants
All of these nameplates are identical and differ only by the serial number.

Important: this nameplate does NOT fit the microscopes currently (as of 2026) sold as the Biolar C. These are ordinary Chinese OEM microscopes with a "Biolar" sticker.

Several decades have passed since the PZO Biolar series microscopes were manufactured, and these nameplates often simply fall off by themselves.

Description of this part for the microscope.

Achromat
Numerical aperture N.A.: 0.24
Tube length: 160 mm
Focal length: 45 mm
Cover glass: not required, but may be used
Immersion: no
Thread: RMS
Info: PhZ = variable phase contrast (white ring).

PZO PhZ objectives, designed for variable phase contrast, are intended to be used together with the PZO K3PhZ phase contrast condenser equipped with a rotating polarizer.

This objective can be used with any microscope from any manufacturer together with a compatible phase contrast condenser. Naturally, the microscope must support RMS objectives with a tube length of 160 mm and a parfocal length of 45 mm.

Description of this part for the microscope.

Achromat
Numerical aperture N.A.: 0.4
Tube length: 160 mm
Focal length: 45 mm
Cover glass: yes, 0,17 mm
Immersion: no
Thread: RMS
Info: PhZ = variable phase contrast (white ring).

PZO PhZ objectives, designed for variable phase contrast, are intended to be used together with the PZO K3PhZ phase contrast condenser equipped with a rotating polarizer.

This objective can be used with any microscope from any manufacturer together with a compatible phase contrast condenser. Naturally, the microscope must support RMS objectives with a tube length of 160 mm and a parfocal length of 45 mm.

Description of this part for the microscope.

Achromat
Numerical aperture N.A.: 1,3
Tube length: 160 mm
Focal length: 45 mm
Cover glass: yes, 0,17 mm
Immersion: yes, oil
Thread: RMS
Info: PhZ = variable phase contrast (white ring).

PZO PhZ objectives, designed for variable phase contrast, are intended to be used together with the PZO K3PhZ phase contrast condenser equipped with a rotating polarizer.

This objective can be used with any microscope from any manufacturer together with a compatible phase contrast condenser. Naturally, the microscope must support RMS objectives with a tube length of 160 mm and a parfocal length of 45 mm.

Description of this part for the microscope.

condensers:
- PZO K3Ph
- PZO K3Ph1
- PZO K4Ph
- PZO KS (this is the "stereo contrast" condenser sold with PZO MB30S microscopes. There are no(!) markings or numbers whatsoever on this condenser)

The diaphragm blades themselves, which are located inside this module, also fit the diaphragms installed in the following condensers:
- PZO K3PhZ (variable phase contrast)
- PZO KPI2 (condenser for Pluta DIC)

Mechanically, this diaphragm is screwed onto the lower part of the phase contrast condenser. The housing of the diaphragm module has a 32 mm male thread. The complete diaphragm with its housing has a diameter of 52 mm.

The iris diaphragm is damaged very often. Replacing it can solve the following problems:
- when the small lever used to open and close the diaphragm blades breaks off. This is a common failure, because this lever is a thin sheet made of a brittle alloy
- when the diaphragm blades get damaged, bent or broken. This is one of the most common faults in microscopes
- when the diaphragm blades jump out of their mounting grooves and you cannot reassemble them
- when the diaphragm stops opening and closing and is completely seized. This happens when the grease has dried out or rust has glued the blades together

The last photos in the gallery show the PZO KS condenser, with an arrow indicating where this diaphragm is located inside the condenser. This allows the component to be identified unambiguously.

PZO phase contrast condensers are often fitted in microscopes from manufacturers other than PZO, so the component presented here is not a repair part for one specific microscope model. This diaphragm will help to repair a phase contrast condenser - regardless of which microscope model and which manufacturer it works in.

Description of this part for the microscope.

condensers:
- PZO K3Ph
- PZO K3Ph1
- PZO K4Ph
- PZO K3PhZ (variable phase contrast)
- PZO KS (this is the "stereo contrast" condenser sold with PZO MB30S microscopes. There are no(!) markings or numbers whatsoever on this condenser)

These condensers contain phase annuli (also called phase rings) and each of them can be centred. They are centred by turning two screws with rectangular heads (different from the square heads in Carl Zeiss Jena condensers).
The condenser models listed above have a special centring module screwed to the housing of the turret, with two spring-loaded centring keys that fit these screws. Thanks to this, there is no need to keep the centring keys at hand and there is no risk of losing them.

Unfortunately, these centring keys protrude more than 40 mm beyond the outline of the condenser and often get bent. In addition, many users unscrew them from the housing for transport or when they store the condenser in non-original packaging - and this leads to the unscrewed centring keys being lost frequently. The solution to such a problem is then to buy separate centring keys or to replace the entire centring module.

Mechanically, this module is screwed to the housing of the PZO phase contrast condenser with two screws, which are additionally locked by two pins - all these elements are included with the centring module presented here.

The last photos in the gallery show the PZO K3Ph condenser, with an arrow indicating where this component for centring the phase annuli is located inside the condenser. This allows the component to be identified unambiguously. The video in the video gallery shows the movement of the moving parts, the action of the springs and how the centring keys rotate.

PZO phase contrast condensers are often fitted in microscopes from manufacturers other than PZO, so the component presented here is not a repair part for one specific microscope model. This module will help to repair a phase contrast condenser - regardless of which microscope model and which manufacturer it works in.

Description of this part for the microscope.

Basic parameters of this phase annulus:
Position in the condenser: phase annulus to be fitted in the "40x" position of a turret condenser, to be paired with the phase ring in a 40x phase contrast objective
Construction: disc with a phase annulus in a mount
Material: glass, colourless polarising film and printed black circles
Diameter of the glass disc with the printed annulus: 14 mm
Disc mount: metal, with a notch for the spring-loaded ejector pin
Spring cushioning: no - the mount of the 40x phase annulus has no spring cushioning
Other names: phase disc, phase glass, phase ring
Intended for: PZO KS condenser
Compatibility: PZO K3Ph, K3Ph1, K4Ph and K3PhZ phase contrast condensers
Important note on appearance: the black dots and lines visible in the photo are not a surface defect - this is how PZO phase rings normally look
Note on the polarising film: two pieces of polarising film are glued onto the annulus. The vertical line running through the middle of the annulus is where these two films meet - it is neither a defect nor a crack, even though it looks like one

Over the years the polarising film used on these phase annuli very often came unstuck (delamination), which often - though not always - caused it to lose its properties and made stereoscopic contrast completely unusable. In such a case you can either:
- peel off the old film, clean the surface of the glass disc and glue on a new one, keeping the polarisation angle
- or replace the whole disc with one like the one offered here.

The specific feature of the PZO KS is that the ring of every disc is divided into two equal halves by two polarisers set perpendicular to each other. By rotating the analyser you extinguish one half of the ring and brighten the other - smoothly, without moving anything in the optical path. The specimen is then illuminated from one side.

And this is exactly how the disc from the KS condenser differs from the discs of the PZO K3Ph, K3Ph1, K4Ph and K3PhZ condensers. Mechanically it is the same insert, 14 mm in diameter, and it fits those condensers. The difference lies solely in the polarisation of the ring itself, described above. That is why a KS disc used in an ordinary phase condenser still gives correct phase contrast with no loss of quality, but once an analyser is placed in the optical path (for example under the head) it can produce interesting, unexpected effects.

For DIY enthusiasts looking for new, unusual visual effects in microscopy, an interesting option is to fit this polarising phase annulus into a different phase contrast condenser. You can then explore the unusual behaviour of various objectives in partially polarised light.
Here is an example: a Zernike-type phase contrast objective (PZO Ph with a green stripe) combined with the phase annulus from the PZO KS condenser gives an unusual, bluish background colour (https://www.facebook.com/photo?fbid=1262188377207557&set=a.462747092529893). And here you can see PZO microscope objectives for six types of phase contrast: https://www.facebook.com/MikroskopyPZO/photos/por%C3%B3wnanie-obiektyw%C3%B3w-pzo-20x-do-kontrastu-fazowego-pier%C5%9Bcienie-zielony-ph-kf-do/1259433520816376/.

The PZO KS condenser was fitted to PZO MB-30S microscopes and was an essential part of a special phase contrast method called "Stereoscopic Contrast" (KS). This condenser is characterised by carrying no markings at all - and that is how you recognise it.

Fastest way to recognise the PZO KS condenser:
PZO KS condenser: no serial number, no manufacturer name or logo, no model designation
Other PZO phase contrast condensers: at least a printed model designation (for example KFF, KFL, K3Ph, K3Ph1, K4Ph, K3PhZ, or KPI 2 in the case of the DIC condenser)

Description of this part for the microscope.

Basic parameters of this phase annulus:
Position in the condenser: phase annulus to be fitted in the "10x" position of a turret condenser, to be paired with the phase ring in a 10x phase contrast objective
Construction: disc with a phase annulus in a mount
Material: glass, colourless polarising film and printed black circles
Diameter of the glass disc with the printed annulus: 14 mm
Disc mount: metal, with a notch for the spring-loaded ejector pin
Spring cushioning: yes - inside the mount, underneath the glass with the phase annulus, there is a spring cushioning
Other names: phase disc, phase glass, phase ring
Intended for: PZO KS condenser
Compatibility: PZO K3Ph, K3Ph1, K4Ph and K3PhZ phase contrast condensers
Important note on appearance: the black dots and lines visible in the photo are not a surface defect - this is how PZO phase rings normally look
Note on the polarising film: two pieces of polarising film are glued onto the annulus. The vertical line running through the middle of the annulus is where these two films meet - it is neither a defect nor a crack, even though it looks like one

Over the years the polarising film used on these phase annuli very often came unstuck (delamination), which often - though not always - caused it to lose its properties and made stereoscopic contrast completely unusable. In such a case you can either:
- peel off the old film, clean the surface of the glass disc and glue on a new one, keeping the polarisation angle
- or replace the whole disc with one like the one offered here.

The specific feature of the PZO KS is that the ring of every disc is divided into two equal halves by two polarisers set perpendicular to each other. By rotating the analyser you extinguish one half of the ring and brighten the other - smoothly, without moving anything in the optical path. The specimen is then illuminated from one side.

And this is exactly how the disc from the KS condenser differs from the discs of the PZO K3Ph, K3Ph1, K4Ph and K3PhZ condensers. Mechanically it is the same insert, 14 mm in diameter, and it fits those condensers. The difference lies solely in the polarisation of the ring itself, described above. That is why a KS disc used in an ordinary phase condenser still gives correct phase contrast with no loss of quality, but once an analyser is placed in the optical path (for example under the head) it can produce interesting, unexpected effects.

For DIY enthusiasts looking for new, unusual visual effects in microscopy, an interesting option is to fit this polarising phase annulus into a different phase contrast condenser. You can then explore the unusual behaviour of various objectives in partially polarised light.
Here is an example: a Zernike-type phase contrast objective (PZO Ph with a green stripe) combined with the phase annulus from the PZO KS condenser gives an unusual, bluish background colour (https://www.facebook.com/photo?fbid=1262188377207557&set=a.462747092529893). And here you can see PZO microscope objectives for six types of phase contrast: https://www.facebook.com/MikroskopyPZO/photos/por%C3%B3wnanie-obiektyw%C3%B3w-pzo-20x-do-kontrastu-fazowego-pier%C5%9Bcienie-zielony-ph-kf-do/1259433520816376/.

The PZO KS condenser was fitted to PZO MB-30S microscopes and was an essential part of a special phase contrast method called "Stereoscopic Contrast" (KS). This condenser is characterised by carrying no markings at all - and that is how you recognise it.

Fastest way to recognise the PZO KS condenser:
PZO KS condenser: no serial number, no manufacturer name or logo, no model designation
Other PZO phase contrast condensers: at least a printed model designation (for example KFF, KFL, K3Ph, K3Ph1, K4Ph, K3PhZ, or KPI 2 in the case of the DIC condenser)

Description of this part for the microscope.

Basic parameters of this phase annulus:
Position in the condenser: phase annulus to be fitted in the "20x" position of a turret condenser, to be paired with the phase ring in a 20x phase contrast objective
Construction: disc with a phase annulus in a mount
Material: glass, colourless polarising film and printed black circles
Diameter of the glass disc with the printed annulus: 14 mm
Disc mount: metal, with a notch for the spring-loaded ejector pin
Spring cushioning: yes - inside the mount, underneath the glass with the phase annulus, there is a spring cushioning
Other names: phase disc, phase glass, phase ring
Intended for: PZO KS condenser
Compatibility: PZO K3Ph, K3Ph1, K4Ph and K3PhZ phase contrast condensers
Important note on appearance: the black dots and lines visible in the photo are not a surface defect - this is how PZO phase rings normally look
Note on the polarising film: two pieces of polarising film are glued onto the annulus. The vertical line running through the middle of the annulus is where these two films meet - it is neither a defect nor a crack, even though it looks like one

Over the years the polarising film used on these phase annuli very often came unstuck (delamination), which often - though not always - caused it to lose its properties and made stereoscopic contrast completely unusable. In such a case you can either:
- peel off the old film, clean the surface of the glass disc and glue on a new one, keeping the polarisation angle
- or replace the whole disc with one like the one offered here.

The specific feature of the PZO KS is that the ring of every disc is divided into two equal halves by two polarisers set perpendicular to each other. By rotating the analyser you extinguish one half of the ring and brighten the other - smoothly, without moving anything in the optical path. The specimen is then illuminated from one side.

And this is exactly how the disc from the KS condenser differs from the discs of the PZO K3Ph, K3Ph1, K4Ph and K3PhZ condensers. Mechanically it is the same insert, 14 mm in diameter, and it fits those condensers. The difference lies solely in the polarisation of the ring itself, described above. That is why a KS disc used in an ordinary phase condenser still gives correct phase contrast with no loss of quality, but once an analyser is placed in the optical path (for example under the head) it can produce interesting, unexpected effects.

For DIY enthusiasts looking for new, unusual visual effects in microscopy, an interesting option is to fit this polarising phase annulus into a different phase contrast condenser. You can then explore the unusual behaviour of various objectives in partially polarised light.
Here is an example: a Zernike-type phase contrast objective (PZO Ph with a green stripe) combined with the phase annulus from the PZO KS condenser gives an unusual, bluish background colour (https://www.facebook.com/photo?fbid=1262188377207557&set=a.462747092529893). And here you can see PZO microscope objectives for six types of phase contrast: https://www.facebook.com/MikroskopyPZO/photos/por%C3%B3wnanie-obiektyw%C3%B3w-pzo-20x-do-kontrastu-fazowego-pier%C5%9Bcienie-zielony-ph-kf-do/1259433520816376/.

The PZO KS condenser was fitted to PZO MB-30S microscopes and was an essential part of a special phase contrast method called "Stereoscopic Contrast" (KS). This condenser is characterised by carrying no markings at all - and that is how you recognise it.

Fastest way to recognise the PZO KS condenser:
PZO KS condenser: no serial number, no manufacturer name or logo, no model designation
Other PZO phase contrast condensers: at least a printed model designation (for example KFF, KFL, K3Ph, K3Ph1, K4Ph, K3PhZ, or KPI 2 in the case of the DIC condenser)