# Part name:
Lomo MIK-4 Infrared Microscope - rotatable insert (Lomo INF slider) with IR filter and iris diaphragm for the microscope condenser

# Original page URL:
https://www.microscopeparts.eu/part/lomo-mik-4-infrared-microscope-rotatable-insert-lomo-inf-slider-with-ir-filter-and-iris-diaphragm-99069

# 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:
Condensers

# Description and specifications:
Rotatable insert (slider) with infrared filter and iris diaphragm for the microscope condenser of Lomo microscopes of the MIK series (e.g. MIK-1 or MIK-4).

Model: Lomo INF
Mount diameter: 35 mm

This insert fits condensers used in the following Lomo microscopes:
- MIK-1
- MIK-4
- Polam (all models)
- MIN-8

and most likely also in other microscopes that use similarly designed condensers. Note - to make sure that this insert fits your condenser, be sure to check the diameter of this element.

The transmitted light condenser in these microscopes features:
- interchangeable upper lenses to obtain the required aperture
- a diaphragm located below the upper lens
- a slot for inserting a IR filter insert (the insert may, but does not have to, include an additional iris diaphragm)

In some cases, this insert alone can be used without the condenser - the effect is similar to a condenser with a IR filter of low N.A.
This element is often used by owners of microscopes from other manufacturers to convert their condenser into a infrared condenser.

Since this element can be removed relatively easily, it is very often missing in microscopes from the secondary market.

IMPORTANT - this is not a separate microscope condenser. It is a component of the condenser, even though it is sometimes used as a substitute for a condenser.

# Examples of use
- this element is missing
- you have this element, but the IR filter is damaged or of very poor quality
- you have this element, but the iris diaphragm is damaged
- you want to use this part as a low N.A. condenser
- you want to use this part for your own DIY projects

# Removed from microscope:
Lomo MIK-4

# Also compatible with the following microscopes:
- Lomo MIK-4
- Lomo MIK-1

# Names, descriptions, terms, and search contexts under which this part is searched.
- Lomo MIK-4 microscope repair parts
- Lomo MIK infrared microscope condenser
- Lomo MIK-1 MIK-4 infrared filter
- Lomo MIK-4 Mikroskopkondensor
- Lomo Infrarot Mikroskopfilter
- microscope IR filter
- Lomo INF
- Lomo buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99069.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99069.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99069-lomo-mik-4-infrared-microscope-rotatable-insert-lomo-inf-slider-with-ir-filter-and-iris-diaphragm
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99069.media.md
- Representative photo: https://www.microscopeparts.eu/photo/lomo-mik-4-infrared-microscope-rotatable-insert-lomo-inf-slider-with-ir-filter-and-iris-diaphragm-99069-2
- Representative video: https://www.microscopeparts.eu/play/99069-1
- Other parts from category Condensers: https://www.microscopeparts.eu/condensers
- More Condensers removed from microscope Lomo MIK-4: https://www.microscopeparts.eu/condensers/from/lomo/mik-4
- More Condensers compatible with microscope Lomo MIK-4: https://www.microscopeparts.eu/condensers/for/lomo/mik-4
- More Condensers removed from microscopes Lomo: https://www.microscopeparts.eu/condensers/from/lomo
- More Condensers compatible with microscopes Lomo: https://www.microscopeparts.eu/condensers/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: 2026-06-30