# Part name:
RMS 8x microscope objective for Lomo Bolam, Opta Junat-P1, Opta UM-301 or Opta Ushm-1 microscopes

# Original page URL:
https://www.microscopeparts.eu/part/foz-opta-opta-um-301-rms-8x-microscope-objective-for-lomo-bolam-opta-junat-p1-opta-um-301-or-opta-ushm-1-microscopes-00639

# Part manufacturer:
FOZ Opta

# Full manufacturer name:
Feodosijskij Optoczeskij Zawod (Feodosia Optical Plant), CCCP

# Belongs to category:
Objective

# Description and specifications:
RMS Microscope Objective with 8x Magnification

Manufacturer: Feodosia Optochesky Zavod (Feodosia Optical Plant, former Soviet Union)
Magnification: 8x
Tube Length: 160 mm
Focal Length: 33 mm
Thread: RMS

This objective was manufactured for microscopes:
- Junat-1P
- OPTA UShM-1
- Opta UM-301

but was often used in Lomo Biolam microscopes due to their complete compatibility... however, these microscopes sometimes had poorly made threads, and some units were difficult to screw into the objective turret. Sometimes, you might encounter incorrect information claiming the manufacturer was LOMO.

# Examples of use
- If you want to upgrade your Opta microscope with original parts
- If you need an 8x lens for Lomo, Carl Zeiss Jena, PZO, IOR, or other microscopes requiring 33mm and 160mm lenses
- This is a very good lens for macro photography (photo stacking)

# Removed from microscope:
FOZ Opta Opta UM-301

# Also compatible with the following microscopes:
- FOZ Opta Junat-2P-1
- FOZ Opta UShM-1
- FOZ Opta Opta UM-301
- Carl Zeiss Jena Lu
- Carl Zeiss Jena Lumipan
- Lomo MBB-1
- Lomo Biolam
- Lomo Biolam D11

# Names, descriptions, terms, and search contexts under which this part is searched.
- FOZ Opta Opta UM-301 microscope repair parts
- mikroskop
- microscope
- Lomo Biolam
- Bresser Biolam
- Carl Zeiss Jena Lumipan
- Opta Junat-P1
- Opta Ushm-1
- Opta UM-301
- objective
- Objektiv
- obiektyw
- FOZ Opta buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/00639.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/00639.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/00639-foz-opta-opta-um-301-rms-8x-microscope-objective-for-lomo-bolam-opta-junat-p1-opta-um-301-or-opta-ushm-1-microscopes
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/00639.media.md
- Representative photo: https://www.microscopeparts.eu/photo/foz-opta-opta-um-301-rms-8x-microscope-objective-for-lomo-bolam-opta-junat-p1-opta-um-301-or-opta-ushm-1-microscopes-00639-2
- Other parts from category Objective: https://www.microscopeparts.eu/objective
- More Objective removed from microscope FOZ Opta Opta UM-301: https://www.microscopeparts.eu/objective/from/foz-opta/opta-um-301
- More Objective compatible with microscope FOZ Opta Opta UM-301: https://www.microscopeparts.eu/objective/for/foz-opta/opta-um-301
- More Objective removed from microscopes FOZ Opta: https://www.microscopeparts.eu/objective/from/foz-opta
- More Objective compatible with microscopes FOZ Opta: https://www.microscopeparts.eu/objective/for/foz-opta

# 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: 2026-08-11