# Part name:
Kosmos Stuttgart 170/- 4/0,10 microscope objective, ( RMS 4x )

# Original page URL:
https://www.microscopeparts.eu/part/kosmos-modell-c-stuttgart-170-4-0-10-microscope-objective-rms-4x-00637

# Part manufacturer:
Kosmos

# Full manufacturer name:
Kosmos Stuttgart

# Other names of this manufacturer:
- Kosmos Lehrmittel Stuttgart
- Kosmos Lehrmittel
- Kosmos Humboldt
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:
Manufacturer: Kosmos Stuttgart
Model: 170/- 4/0.10
Magnification: 4x
Correction: Achromat
Numerical Aperture: 0.10
Tube Length: 170 mm
Focal Length: 33 mm (37 mm?)
Cover Glass: No
Immersion: No
Thread: RMS

Objective lens of excellent optical quality.

Currently, Kosmos Stuttgart sells plastic educational microscopes for children imported from China.
High-quality optical microscopes were once sold under this brand (or Humboldt), primarily those manufactured at the Hertel & Reuss factory in Kassel.

# Examples of use
- If you have a Kosmos microscope without objectives and need to upgrade it using original parts
- If you have a Kosmos microscope that doesn't have an objective lens with this magnification and want to upgrade 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 such an objective lens on hand
- If you're looking for a very good 5x objective lens for your microscope from another manufacturer
- If you're looking for a good quality lens with for macro photography

# Removed from microscope:
Kosmos Modell C

# Also compatible with the following microscopes:
- Kosmos Modell C
- Union Mic-3
- Leitz SM
- Praktycznie każdy 170 Praktycznie każdy z TL = 170 mm
- ROW UFA 626
- ROW UFD 121
- ROW UFD 122
- Meopta DD 37 BN

# Names, descriptions, terms, and search contexts under which this part is searched.
- Kosmos Modell C microscope repair parts
- Mikroskop Objektiv
- obiektyw mikroskopowy
- lens
- glass
- soczewka
- microscope objective
- ROW Rathenow
- Leitz Wetzlar
- Meopta
- Kosmos
- Humboldt
- Hertel & Reuss
- Kosmos buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/00637.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/00637.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/00637-kosmos-modell-c-stuttgart-170-4-0-10-microscope-objective-rms-4x
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/00637.media.md
- Representative photo: https://www.microscopeparts.eu/photo/kosmos-modell-c-stuttgart-170-4-0-10-microscope-objective-rms-4x-00637-2
- Other parts from category Objective: https://www.microscopeparts.eu/objective
- More Objective removed from microscope Kosmos Modell C: https://www.microscopeparts.eu/objective/from/kosmos/modell-c
- More Objective compatible with microscope Kosmos Modell C: https://www.microscopeparts.eu/objective/for/kosmos/modell-c
- More Objective removed from microscopes Kosmos: https://www.microscopeparts.eu/objective/from/kosmos
- More Objective compatible with microscopes Kosmos: https://www.microscopeparts.eu/objective/for/kosmos

# 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: 2026-08-10