More about part: Carl Zeiss Jena NU / Amplival M19 Planachromat 25x/0,50 oo/0 microscope objective (ID: 91056)
Carl Zeiss Jena NU / Amplival M19 Planachromat 25x/0,50 oo/0 microscope objective
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Description
Carl Zeiss Jena NU / Amplival M19 Planachromat 25x/0,50 oo/0 microscope objectiveCarl Zeiss Jena Planachromat 25x microscope objective with M19 thread, for infinity systems, for work without a cover glass.
Basic parameters:
- Manufacturer
- Carl Zeiss Jena
- Engraving on the objective
- Planachromat 25x/0,50 ∞/0
- Magnification
- 25x
- Numerical aperture N.A.
- 0,50
- Free working distance
- 3,1 mm
- Tube length
- infinity (more precisely: 250 mm)
- Optical correction
- planachromatic
- Cover glass
- no - this objective is intended for work without a cover glass
- Immersion
- no - this is a so-called dry objective
- Phase contrast
- no - this objective has no phase ring inside
- Polarisation
- no - this is not a polarising objective
- Thread
- M19
- Plan compensating eyepieces
- yes, required - this objective calls for eyepieces with additional correction (designated "PK" by Carl Zeiss Jena)
- Direct projection and macro photography
- no - this objective does not work in direct projection mode and is not suitable for macro photography by connecting the objective directly to a camera
This objective can be used as:
- an objective for work in reflected light (EPI), for biological as well as, among others, metallurgical or mineralogical applications
- an objective for work in transmitted light, among others with biological specimens or, for example, with mineralogical thin sections
A few facts about Carl Zeiss Jena objectives with M19 thread (CZJ M19) and their compatibility with various microscopes of this company:
- these objectives serve mostly technical applications and are intended for work without a cover glass (marking ∞/0)
- CZJ M19 objectives intended for biological applications (that is, marked ∞/0,17) are most often used on Carl Zeiss Jena NU / NU2 microscopes
- in Carl Zeiss Jena Nf and Lumipan microscopes, CZJ M19 objectives are used together with the EPI illuminator and can then work both in bright field and in dark field
- in Carl Zeiss Jena Polmi-A microscopes, CZJ M19 objectives can be used, but they give a magnification other than the nominal one
- Carl Zeiss Jena Amplival / Amplival Pol / Amplival Interphako / Peraval microscopes have an interchangeable nosepiece, and there is also a nosepiece intended for these microscopes that accepts objectives with M19 thread
- Carl Zeiss Jena Metaval microscopes use newer versions of CZJ M19 objectives (those with a coarsely knurled rim and a glossy barrel), yet many people experiment with older M19 objectives on these microscopes
- Carl Zeiss Jena Epignost and BK 70x50 microscopes were produced in various configurations - and some work with CZJ M19 objectives
- Carl Zeiss Jena Vertival / Epival / Nf / BK 70x50 microscopes often allow work with CZJ M19 objectives in EPI dark field mode
- on inverted metallographic Carl Zeiss Jena Epityp-2 / Neophot-21 microscopes, many people use biological objectives intended for work with a cover glass alongside metallurgical ones, and place the slide with the specimen on the stage "upside down", that is, with the cover glass facing downwards
Manufacturer
Carl Zeiss Jena - (VEB Carl Zeiss Jena DDR (former East Germany)) ➔ All parts
It comes from
This part was removed from the following microscope:
Why do you need this?
This microscope part is typically used for the following purposes:
- if you need an objective with this magnification for one of the microscopes with which it is compatible (additional information can be found in the description)
Compatibility
This microscope part is compatible with the following microscope models:
- Carl Zeiss Jena NU
- Carl Zeiss Jena NU-2
- Carl Zeiss Jena Amplival
- Carl Zeiss Jena Vertival
- Carl Zeiss Jena Lumipan
- Carl Zeiss Jena Nf
- Carl Zeiss Jena Epival
- Carl Zeiss Jena Polmi A
- Carl Zeiss Jena BK 70x50
- Carl Zeiss Jena Epignost
- Carl Zeiss Jena Epityp-2
- Carl Zeiss Jena Metaval
- Carl Zeiss Jena Neophot 21
- Carl Zeiss Jena Amplival Pol
- Carl Zeiss Jena Amplival Interphako
- Carl Zeiss Jena Peraval