# Part name:
Lomo MMU-3 / MMY-3 metallurgical microscope illuminator to body connector | intermediate tube with iris diaphragm slot

# Original page URL:
https://www.microscopeparts.eu/part/lomo-mmu-3-mmy-3-metallurgical-microscope-illuminator-to-body-connector-intermediate-tube-with-iris-99516

# 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:
Housings and its parts

# Description and specifications:
Intermediate tube with an iris diaphragm slide slot connecting the illuminator to the microscope body of the Lomo MMU-3 metallurgical microscope.

This microscope part is an intermediate tube located in the optical path between the reflected-light illuminator with its condenser and the microscope body. It performs two functions:
- on one side it is attached to the microscope body, and this side contains the slot into which the iris diaphragm slide is inserted
- on the opposite side there is a dovetail mount for the illuminator assembly

Please note:
- the original Cyrillic designation of this model is: ЛОМО ММУ-3
- for users of the Latin alphabet who know that the manufacturer is "Lomo", the designation looks like: Lomo MMY-3
- however, the original designation is read as: Lomo MMU-3

The last photograph shows this microscope part indicated with an arrow and its exact position inside the microscope, allowing it to be identified unambiguously.

# Examples of use
- if you have a Lomo MMU-3 microscope body without this component
- if you already have this component but it is incomplete, damaged or in poor condition

# Removed from microscope:
Lomo MMU-3

# Also compatible with the following microscopes:
Lomo MMU-3

# Names, descriptions, terms, and search contexts under which this part is searched.
- Lomo MMU-3 microscope repair parts
- Lomo MMU-3 / MMY-3 EPI Auflicht Mikroskop Beleuchtungs-halter
- Lomo MMU-3 Mikroskop Blenden-Schieber-Halter
- Lomo MMU-3 EPI microscope illuminator holder
- Lomo MMY-3 microscope slide slot
- Lomo buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99516.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99516.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99516-lomo-mmu-3-mmy-3-metallurgical-microscope-illuminator-to-body-connector-intermediate-tube-with-iris
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99516.media.md
- Representative photo: https://www.microscopeparts.eu/photo/lomo-mmu-3-mmy-3-metallurgical-microscope-illuminator-to-body-connector-intermediate-tube-with-iris-99516-2
- Representative video: https://www.microscopeparts.eu/play/99516-1
- Other parts from category Housings and its parts: https://www.microscopeparts.eu/housings-and-its-parts
- More Housings and its parts removed from microscope Lomo MMU-3: https://www.microscopeparts.eu/housings-and-its-parts/from/lomo/mmu-3
- More Housings and its parts compatible with microscope Lomo MMU-3: https://www.microscopeparts.eu/housings-and-its-parts/for/lomo/mmu-3
- More Housings and its parts removed from microscopes Lomo: https://www.microscopeparts.eu/housings-and-its-parts/from/lomo
- More Housings and its parts compatible with microscopes Lomo: https://www.microscopeparts.eu/housings-and-its-parts/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: 2026-07-01