# Part name:
Leitz Dialux 20 microscope - light collector lens and filter holder

# Original page URL:
https://www.microscopeparts.eu/part/leitz-dialux-20-microscope-light-collector-lens-and-filter-holder-99398

# Part manufacturer:
Leitz

# Full manufacturer name:
Leitz Wetzlar

# Other names of this manufacturer:
- Leitz Wetzlar, West Germany
- E. Leitz Wetzlar GmbH
- Ernst Leitz Wetzlar
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:
Lenses

# Description and specifications:
Collector lens for illumination in the Leitz Wetzlar Dialux 20 microscope. The lens is housed in a plastic mount which also serves as a filter holder.

This lens is part of the component shown in the Leitz Dialux 20 microscope manual under number 18, which corresponds to the field diaphragm assembly. This page from the manual can be found in the image gallery.

The field diaphragm of the Leitz Dialux 20 microscope consists of:
- lens
- iris diaphragm
and is screwed to the microscope base (stativ foot) directly below the condenser.
The item offered here is exactly this lens.

This lens performs several functions:
- it collimates the light beam
- it protects the iris diaphragm from contamination
- it also serves as a filter holder for inserting filters

It is worth noting that this element may also be compatible with many other Leitz Wetzlar microscope models.

# Examples of use
- as service spare part

# Removed from microscope:
Leitz Dialux 20

# Also compatible with the following microscopes:
Leitz Dialux 20

# Names, descriptions, terms, and search contexts under which this part is searched.
- Leitz Dialux 20 microscope repair parts
- Leitz Wetzlar Dialux 20 Mikroskop Feldblende Licht-Kollektor-Linse
- Leitz Dialux 20 microscope light collector lens
- Leitz buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99398.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99398.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99398-leitz-dialux-20-microscope-light-collector-lens-and-filter-holder
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99398.media.md
- Representative photo: https://www.microscopeparts.eu/photo/leitz-dialux-20-microscope-light-collector-lens-and-filter-holder-99398-2
- Representative video: https://www.microscopeparts.eu/play/99398-1
- Other parts from category Lenses: https://www.microscopeparts.eu/lenses
- More Lenses removed from microscope Leitz Dialux 20: https://www.microscopeparts.eu/lenses/from/leitz/dialux-20
- More Lenses compatible with microscope Leitz Dialux 20: https://www.microscopeparts.eu/lenses/for/leitz/dialux-20
- More Lenses removed from microscopes Leitz: https://www.microscopeparts.eu/lenses/from/leitz
- More Lenses compatible with microscopes Leitz: https://www.microscopeparts.eu/lenses/for/leitz

# 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