More about part: LOMO / Bresser Biolam 90x Oil microscope objective A 90*1.25 with RMS thread (ID: 99808)
LOMO / Bresser Biolam 90x Oil microscope objective A 90*1.25 with RMS thread
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Description
Lomo Bresser Biolam 90x Oil microscope objective A 90*1.25 with RMS threadExport version of a LOMO (ЛОМО) oil immersion microscope objective with 90x magnification.
Basic parameters of this objective:
- Manufacturer
- Lomo (ЛОМО)
- Version
- this is the OEM version of this objective; it was made for export and has no engraved manufacturer logo
- Magnification
- 90x
- Correction
- achromatic
- Marking on the objective
- A 90*1.25
- Numerical aperture N.A.
- 1.25
- Tube length
- 160 mm
- Parfocal length
- 33 mm - so-called short barrel objective
- Cover glass
- yes, 0.17 mm thick
- Immersion
- yes, oil
- Specimen protection
- yes, the objective has a spring-loaded front mount that prevents breaking the slide
- Thread
- RMS
LOMO exported its microscopes to Western Europe, where they were sold under the names Bresser Biolam / Bresser Erudit (mainly in Germany) and Zenith Biolam (in the UK). These microscopes often (but not always) came with special versions of the objectives without the "ЛОМО" engraving.
Apart from the missing manufacturer name, the export version also differs in the way the parameters are marked. On the LOMO version the marking read "МИ 90 1.25", where "МИ" is an abbreviation written in Cyrillic, corresponding to "MI" and meaning "oil immersion". The export version dropped the Cyrillic (and even the immersion information), and the marking changed to "A 90*1.25".
A note on the Bresser Erudit microscope: Bresser sold two different microscopes under this name. The first was a Lomo Biolam microscope labelled "Lomo Erudit", the second is the plastic, Chinese-made "Bresser Erudit DLX" microscope.
The microscope objective offered here fits the first of these two Erudit microscopes. A photo gallery of the first model can be found here: [[ LINK ]].
This is a so-called short barrel objective with a parfocal length of 33 mm. It is very often mounted on a 12 mm extension, which allows it to be used in microscopes that require objectives with a 45 mm parfocal length. Professional adapters with protective optics, metal adapters and popular DIY 3D-printed adapters all work well here.
LOMO objectives are very popular with owners of microscopes from other manufacturers. Due to historical ties, owners of Carl Zeiss Jena microscopes regard them as an obvious replacement for the German objectives.
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 33 mm parfocal length (or 37 / 45 mm with a suitable adapter). Several example microscopes are listed in the "compatibility" section, but the list is not complete.
Manufacturer
Lomo - (Leningrad Optical Mechanical Association) ➔ 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 want to complete your Bresser Biolam / Lomo Biolam microscope with original parts
- If you need a 90x / 100x immersion objective for Bresser, Lomo, Carl Zeiss Jena, Euromex or other compatible microscopes
Compatibility
This microscope part is compatible with the following microscope models:
- Bresser Biolam
- Bresser Erudit
- Lomo Biolam
- Lomo MPD-1
- Lomo Biolam-I
- Lomo MIN-8
- Lomo MBB-1
- Lomo Biolam-M
- Lomo Polam R-113
- Lomo Polam L-211
- Lomo M-9
- Lomo Biolam D11
- Lomo MIN-6
- Lomo MBR-3
- Lomo MIN-1
- Lomo Polam L-213
- Lomo MBP-1
- Lomo Erudit
- Lomo Biolam 70
- IOR ML-4M
- Hertel & Reuss Studio C
- Hertel & Reuss CN-fl
- Carl Zeiss Jena Lg
- Carl Zeiss Jena Lumipan
- Carl Zeiss Jena Nf
- Carl Zeiss Jena Laboval
- Carl Zeiss Jena Eduval
- Olympus CH
- Olympus KHC