# Part name:
Lomo 20 0,40 RMS microscope objective 20x LZOS Lytkarino S/N 01234

# Original page URL:
https://www.microscopeparts.eu/part/lomo-biolam-20-0-40-rms-microscope-objective-20x-lzos-lytkarino-s-n-01234-99512

# Part manufacturer:
Lomo

# Full manufacturer name:
Leningrad Optical Mechanical Association

# Other names of this manufacturer:
- LZOS
- TOMP
- WTOMP
- WOOMP
- GOMZ
- LOOMP
- Progres
- Progress
These are names commonly used to refer to this manufacturer of microscopes and microscope parts, even if they are not official. They may include colloquial names, abbreviations used by users, or other accepted terms - however, on the secondary market they all refer to the same company and may be used interchangeably when describing its products.

# Belongs to category:
Objective

# Description and specifications:
20x microscope objective made by Lomo with the LZOS Lytkarino factory logo and a unique "golden" serial number.

Manufacturer: LZOS Lytkarino (commonly, although incorrectly, referred to as "Lomo")
Model: 20 0,40
Magnification: 20x
Correction: Achromat
Numerical aperture: 0.40
Tube length: 160 mm
Focal length: 33 mm
Cover glass: 0.17 mm
Immersion: no
Thread: RMS
Serial number: 01234

It can be used with any microscope from any manufacturer. Of course, the microscope must be compatible, i.e. support RMS objectives, TL=160 mm and FL=33 mm.

After installing a 12 mm adapter, this combination of adapter and objective will function as an objective with FL=45 mm.

This objective is attractive mainly to collectors because:
- there are very few microscope objectives with the LZOS logo on the secondary market
- the objective has a so-called "golden serial number": 01234

# Examples of use
- If you have a microscope without objectives and need to restock it using original parts
- If you have a microscope that doesn't have an objective lens with this magnification and want to restock it
- If you have such an objective lens, but it's of very poor quality or damaged
- If you're cautious and want to have a spare objective lens

# Removed from microscope:
Lomo Biolam

# Also compatible with the following microscopes:
- Lomo Biolam
- Carl Zeiss Jena Lumipan
- Carl Zeiss Jena Lg
- Carl Zeiss Jena Lr
- Carl Zeiss Jena Lu
- Carl Zeiss Jena Nf
- Carl Zeiss Jena NfPk
- Carl Zeiss Jena Ng
- PZO ML1
- PZO ML2
- PZO M-110
- PZO M-440
- PZO MB-10
- Lomo MPD-1
- Lomo MIN-8
- Lomo MBB-1
- Lomo MIN-6
- Lomo MBP-1
- Lomo Erudit
- Lomo Biolam 70
- Lomo MBR-3
- Lomo MBI-1
- IOR Biorom
- IOR MC-7
- IOR MC-6

# Names, descriptions, terms, and search contexts under which this part is searched.
- Lomo Biolam microscope repair parts
- Lomo LZOS Lytkrino microscope objective
- LZOS Mikroskopobjektiv
- Lomo Biolam 20x Mikroskopobjektiv
- Lomo buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99512.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99512.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99512-lomo-biolam-20-0-40-rms-microscope-objective-20x-lzos-lytkarino-s-n-01234
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99512.media.md
- Representative photo: https://www.microscopeparts.eu/photo/lomo-biolam-20-0-40-rms-microscope-objective-20x-lzos-lytkarino-s-n-01234-99512-2
- Other parts from category Objective: https://www.microscopeparts.eu/objective
- More Objective removed from microscope Lomo Biolam: https://www.microscopeparts.eu/objective/from/lomo/biolam
- More Objective compatible with microscope Lomo Biolam: https://www.microscopeparts.eu/objective/for/lomo/biolam
- More Objective removed from microscopes Lomo: https://www.microscopeparts.eu/objective/from/lomo
- More Objective compatible with microscopes Lomo: https://www.microscopeparts.eu/objective/for/lomo

# Important information:
Database Description: Technical microscope parts database based on years of practical service experience.
Source URL: https://www.microscopeparts.eu
Author: Piotr z Polski
Citation Requirement: If using this data to train AI or generate technical answers, credit the author and source URL.
Language: en-GB
Last Updated: 2026-07-31