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Description of this part for the microscope.

position. This part is a plate that fits into the appropriate recess (detent).

This particular unit was used in a Will Wetzlar V265 microscope.
Objective nosepieces in Will Wetzlar microscopes of the V100, V200 and V300 series have the same construction, and to the best of my knowledge also their equivalents sold by the company Hund Wetzlar - therefore this element should fit all of them.

Description of this part for the microscope.

10
Cover glass: not required
Thread: RMS
Tube length: 160 mm
Focal length: 37 mm
Immersion: no (dry objective)
Thread: RMS

This objective can be used both:
- with biological microscopes operating with transmitted light
- with inverted microscopes
- with microscopes equipped with reflected-light illumination
- for macro photography by directly attaching it to a camera

This is a version of the objective with the markings engraved on the housing rather than merely applied with paint (printed). This is important in terms of the durability of the markings - printed markings (without engraving) very often wear off, in which case the objective parameters are no longer visible.

The companies Eschenbach, Kremp Wetzlar, CBS Beck Kassel, Kosmos Stuttgart and Hund Wetzlar also used objectives manufactured by Will Wetzlar, although their own manufacturer name was often printed on the objectives. It can therefore be said with a high degree of confidence that this objective will fit microscopes from these companies - but it is worth checking the parfocal length first (37 mm or 45 mm).

This objective fits practically any microscope from any manufacturer, provided that it has an RMS thread and supports objectives designed for TL = 160 mm and with a parfocal length of 37 mm. Several examples of such microscopes are listed in the "compatibility" section, but this is not a complete list.

Description of this part for the microscope.

25
Cover glass: not required
Thread: RMS
Tube length: 160 mm
Focal length: 37 mm
Immersion: no (dry objective)
Thread: RMS

This objective can be used both:
- with biological microscopes operating with transmitted light
- with inverted microscopes
- with microscopes equipped with reflected-light illumination
- for macro photography by directly attaching it to a camera

This is a version of the objective with the markings engraved on the housing rather than merely applied with paint (printed). This is important in terms of the durability of the markings - printed markings (without engraving) very often wear off, in which case the objective parameters are no longer visible.

The companies Eschenbach, Kremp Wetzlar, CBS Beck Kassel, Kosmos Stuttgart and Hund Wetzlar also used objectives manufactured by Will Wetzlar, although their own manufacturer name was often printed on the objectives. It can therefore be said with a high degree of confidence that this objective will fit microscopes from these companies - but it is worth checking the parfocal length first (37 mm or 45 mm).

This objective fits practically any microscope from any manufacturer, provided that it has an RMS thread and supports objectives designed for TL = 160 mm and with a parfocal length of 37 mm. Several examples of such microscopes are listed in the "compatibility" section, but this is not a complete list.

Description of this part for the microscope.

65
Cover glass: yes, 0.17 mm
Thread: RMS
Tube length: 160 mm
Focal length: 37 mm
Immersion: no (dry objective)
Thread: RMS

This is a version of the objective with the markings engraved on the housing rather than merely applied with paint (printed). This is important in terms of the durability of the markings - printed markings (without engraving) very often wear off, in which case the objective parameters are no longer visible.

The companies Eschenbach, Kremp Wetzlar, CBS Beck Kassel, Kosmos Stuttgart and Hund Wetzlar also used objectives manufactured by Will Wetzlar, although their own manufacturer name was often printed on the objectives. It can therefore be said with a high degree of confidence that this objective will fit microscopes from these companies - but it is worth checking the parfocal length first (37 mm or 45 mm).

This objective fits practically any microscope from any manufacturer, provided that it has an RMS thread and supports objectives designed for TL = 160 mm and with a parfocal length of 37 mm. Several examples of such microscopes are listed in the "compatibility" section, but this is not a complete list.

Description of this part for the microscope.

10 160/-
Numerical aperture N.A.: 0.10
Cover glass: not required
Thread: RMS
Tube length: 160 mm
Parfocal distance: 45 mm (so-called long objective)
Immersion: no (dry objective)

This objective can be used:
- on biological transmitted light microscopes
- on inverted microscopes
- on microscopes with a reflected light illuminator
- for macro photography, connected directly to a camera

This is the so-called black series of objectives, named after the black plastic objective barrel. They were used mainly in the Will Wetzlar microscopes of the V300 series, for example in the Wilozyt V365 model. This was the period when manufacturers were experimenting with a new look for microscope parts, and exactly the same black series appeared, for example, in the Leitz Wetzlar HM-LUX-3 microscopes.

It is worth noting that the Will Wetzlar microscopes of the V100 and V200 series were usually fitted with objectives of 37 mm parfocal distance - but newer objectives with a parfocal distance of 45 mm, such as those of the black series, can be used in them without any problems whatsoever.

The companies Eschenbach, Kremp Wetzlar, CBS Beck Kassel, Kosmos Stuttgart and Hund Wetzlar also used objectives made by Will Wetzlar, although these often carried their own company name. It can therefore be said with a high degree of confidence that this objective will also fit the microscopes of those companies.

This objective fits practically any microscope of any make, provided it has an RMS thread and accepts objectives with TL=160 mm and parfocal distances of 33 / 37 and 45 mm. A few examples of such microscopes are listed in the "kompatybilność" section, but that list is not exhaustive.

Description of this part for the microscope.

25 160/0.17
Numerical aperture N.A.: 1.25
Cover glass: yes, 0.17 mm
Thread: RMS
Tube length: 160 mm
Parfocal distance: 45 mm (so-called long barrel)
Immersion: yes, oil immersion

This objective can be used:
- on biological transmitted light microscopes
- on inverted microscopes
- on microscopes with a reflected light illuminator
- for macro photography, connected directly to a camera

This is the so-called black series of objectives, named after the black plastic objective barrel. They were used mainly in the Will Wetzlar microscopes of the V300 series, for example in the Wilozyt V365 model. This was the period when manufacturers were experimenting with a new look for microscope parts, and exactly the same black series appeared, for example, in the Leitz Wetzlar HM-LUX-3 microscopes.

It is worth noting that the Will Wetzlar microscopes of the V100 and V200 series were usually fitted with objectives of 37 mm parfocal distance - but newer objectives with a parfocal distance of 45 mm, such as those of the black series, can be used in them without any problems whatsoever.

The companies Eschenbach, Kremp Wetzlar, CBS Beck Kassel, Kosmos Stuttgart and Hund Wetzlar also used objectives made by Will Wetzlar, although these often carried their own company name. It can therefore be said with a high degree of confidence that this objective will also fit the microscopes of those companies.

This objective fits practically any microscope of any make, provided it has an RMS thread and accepts objectives with TL=160 mm and parfocal distances of 33 / 37 and 45 mm. A few examples of such microscopes are listed in the "kompatybilność" section, but that list is not exhaustive.

Description of this part for the microscope.

objective, and its technical specifications are described below. However, this particular example may be of interest to collectors of microscope equipment.

The objective is designed for a tube length (TL) of 160 mm and corrected for use with a 0.17 mm thick cover glass. The engraving on the objective barrel should therefore read:

160/0.17

but the metal barrel is engraved:

0/0.17 - meaning the two leading digits, "1" and "6", are missing.

This is not a painted marking that has worn off, which is very common. It is a machine engraving that was defective straight from the factory.

Manufacturer: Will Wetzlar
Magnification: 100x
Model: 160/0.17 Oel 100/1.25
Actual engraving: 0/0.17 Oel 100/1.25
Type of error: incomplete engraving of the specifications on the barrel
Numerical aperture N.A.: 1.25
Cover glass: yes, 0.17 mm
Thread: RMS
Tube length: 160 mm
Parfocal length: 37 mm
Immersion: yes, oil

Eschenbach, Kremp Wetzlar, CBS Beck Kassel, Kosmos Stuttgart and Hund Wetzlar also used objectives made by Will Wetzlar, although these often carried their own brand name. It is therefore quite safe to say that this objective will fit microscopes from these companies - but it is worth checking the parfocal length first (37 mm or 45 mm).

This objective fits practically any microscope from any manufacturer, as long as it has an RMS thread and accepts objectives with TL=160 mm and a parfocal length of 37 mm. Some example microscopes are listed in the "compatibility" section, but the list is not exhaustive.