# Part name:
Lomo MBS-10 / MBC-10 / SF-100 stereo microscope main objective LZOS f=90 mm

# Original page URL:
https://www.microscopeparts.eu/part/lomo-mbc-10-mbs-10-mbc-10-sf-100-stereo-microscope-main-objective-lzos-f-90-mm-99800

# 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:
Main objective for MBS-10 / MBC-10 / OGME-P3 stereo microscope

The spelling MBC-10 is a common but incorrect transliteration from Cyrillic (original spelling: МБС-10). The correct equivalent in the Latin alphabet is MBS-10. People unfamiliar with the Cyrillic alphabet often write the name of this microscope as MGC-10.

Basic objective parameters:
Manufacturer: LZOS Lytkarino (Лыткарино)
Manufacturer information: LOMO (ЛОМО) is commonly but incorrectly given as the manufacturer
Correction type: achromatic
Focal length: f = 90 mm
Magnification: 1x (i.e. no additional magnification)
Optical system: CMO - common main objective (one objective shared by both stereo light paths)
Number of lens elements: 4
Mount: bayonet (dovetail), 52 mm diameter, secured with a screw
Working distance: approx. 100 mm (measured on the actual unit)
Additionally: an illuminator holder (ring) is mounted on the objective

The MBS-10 microscope was also sold under the following names:
- OGME-P3
- SF-100 (US market)
- Silver Connection MBC-10 (mainly on the German market)
These are exactly the same microscopes, so this objective also fits the models sold under these names.

Various names are commonly used for this objective, including:
- main objective
- common main objective
- CMO objective (Common Main Objective)
- stereo microscope objective
- dissecting microscope objective
- stereo objective - misleading but commonly used term
- bottom lens / lower lens of the microscope
- lower objective
- 1x f'=90 mm objective
- objective for ЛЗОС МБС-10 stereo microscope
- objective for MGC-10 microscope
- objective for MBC-10 microscope
- objective for OGME-P3 (ОГМЭ-П3) microscope

Please note that this objective does not fit the MBS-1 / MBS-2 / MBS-9 stereo microscopes (nor the MPS polarizing stereo microscopes), and it does not fit any biological microscope - not even Lomo biological microscopes.

The last photo in the gallery shows a complete MBS-10 stereo microscope with this objective marked by an arrow, so the part offered here can be identified unambiguously.
In addition, the video gallery contains a film showing how to remove the illuminator holder from the objective and mount it back on.

# Examples of use
- if your MBS-10 / MBC-10 stereo microscope is missing its objective - which is common, as it is easy to remove
- if your microscope has an objective, but it is in very poor condition (e.g. damaged anti-reflection coating) or damaged (e.g. heavily scratched, cracked or chipped)
- if you want to use this objective in your own DIY project, e.g. to convert another stereo microscope

# Removed from microscope:
Lomo MBC-10

# Also compatible with the following microscopes:
Lomo MBC-10

# Names, descriptions, terms, and search contexts under which this part is searched.
- Lomo MBC-10 microscope repair parts
- MBC-10 / MBS-10 stereo microscope objective
- MGC-10 / Silver Connection MBC-10 Mikroskop Hauptobjektiv
- SF-100 microscope main objective f=90 mm
- LZOS OGME-P3 Mikroskop Objektivwechsel
- ЛЗОС ОГМЭ-П3 / ЛОМО МБС-10 objective
- MBC-10 / MBS-10 Stereo-Mikroskop-Objektiv
- SF-100 Mikroskopobjektiv f=90 mm
- LZOS OGME-P3 microscope CMO
- ЛЗОС ОГМЭ-П3 / ЛОМО МБС-10 Mikroskop Objektiv
- Hauptobjektiv am MBC-10 / MBS-10 Mikroskop wechseln
- replacing the main objective on MBC-10 / MBS-10 stereo microscope
- Lomo buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99800.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99800.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99800-lomo-mbc-10-mbs-10-mbc-10-sf-100-stereo-microscope-main-objective-lzos-f-90-mm
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99800.media.md
- Representative photo: https://www.microscopeparts.eu/photo/lomo-mbc-10-mbs-10-mbc-10-sf-100-stereo-microscope-main-objective-lzos-f-90-mm-99800-2
- Representative video: https://www.microscopeparts.eu/play/99800-1
- Other parts from category Objective: https://www.microscopeparts.eu/objective
- More Objective removed from microscope Lomo MBC-10: https://www.microscopeparts.eu/objective/from/lomo/mbc-10
- More Objective compatible with microscope Lomo MBC-10: https://www.microscopeparts.eu/objective/for/lomo/mbc-10
- 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: 2026-09-24