# Part name:
Carl Zeiss Jena Jenaval Achr. apl. N.A. 0.9 microscope condenser | Jenalumar compatible

# Original page URL:
https://www.microscopeparts.eu/part/carl-zeiss-jena-jenaval-achr-apl-n-a-0-9-microscope-condenser-jenalumar-compatible-99866

# Part manufacturer:
Carl Zeiss Jena

# Full manufacturer name:
VEB Carl Zeiss Jena DDR (former East Germany)

# Other names of this manufacturer:
- ausJena
- aus Jena
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:
Achromatic-aplanatic dry condenser 0.9 for the Carl Zeiss Jena Jenaval microscope.

Carl Zeiss Jena Jenaval and Jenalumar microscopes each have two condensers - a survey condenser with low numerical aperture and a main condenser with high aperture. Both sit on a common carrier at the same time, which lets you switch between them. What I am showing here is the main one, with the 0.9 aperture - the condenser alone, so without the carrier.

Parameters of this condenser:
Manufacturer: Carl Zeiss Jena
Numerical aperture N.A.: 0.9
Correction: achromatic-aplanatic (Achr. apl.)
Immersion: no. This is a dry condenser
Mounting: the condenser carrier holds a centrable threaded ring, and the condenser screws into that ring. The thread diameter is 38 mm.
Iris diaphragm: not on the condenser - the diaphragm sits in the carrier, below the condenser
Intended use: this condenser model was fitted in Carl Zeiss Jena Jenaval microscopes

How it mounts in the carrier:
- The condenser carrier holds a threaded ring, and the ring itself is centrable - two centring screws do that job (these ones: https://www.microscopeparts.eu/part/00535).
- The screws set the position of the ring, and the condenser simply screws into that ring.
- Further down, in the same carrier, sits the iris diaphragm for this main condenser. It is centrable as well and has its own screws for that.

This condenser can also be screwed into the carrier of Carl Zeiss Jena Jenalumar microscopes - it is the same carrier as in Jenaval microscopes. Note, however, that Jenalumar microscopes run the Apl. 0.9 condenser from the factory, that is the aplanatic version without achromatic correction.

The Achr. apl. 0.9 condenser is the working condenser of these microscopes - it covers the whole range of dry objectives, but with immersion objectives it works without making use of their full aperture.

# Examples of use
- if this condenser is missing from your Carl Zeiss Jena Jenaval microscope, because someone unscrewed it, for example
- if you have a microscope with this condenser but it is damaged - with a damaged top lens, for instance, which is very common
- if you have a Carl Zeiss Jena Jenalumar microscope and deliberately want to fit an achromatic-aplanatic condenser in it
- if you want to use this condenser as the only condenser in a different microscope and mount it there with your own DIY holder

# Removed from microscope:
Carl Zeiss Jena Jenaval

# Also compatible with the following microscopes:
- Carl Zeiss Jena Jenaval
- Carl Zeiss Jena Jenalumar

# Names, descriptions, terms, and search contexts under which this part is searched.
- Carl Zeiss Jena Jenaval microscope repair parts
- Jenaval Kondensor 0.9 fehlt
- Jenaval main condenser 0.9 replacement
- Zeiss Jena Achr. apl. 0.9 Frontlinse beschädigt
- Jenaval condenser top lens cracked
- Jenalumar Apl. 0.9 gegen Achr. apl. 0.9 tauschen
- Jenaval Kondensoreinhänger Zentrierring 38mm
- Zeiss Jena dry condenser 38mm thread
- Jenaval Kondensor Trockenobjektive Ausleuchtung
- main condenser for DIY microscope mount
- Zeiss Jena Jenapol Hauptkondensor
- kondensor główny 0.9 do mikroskopu Jenaval
- kondenzor 0.9 a Zeiss Jena
- condensador Zeiss Jena Jenaval 0.9
- condensador acromático aplanático 0.9 Zeiss Jena
- condensatore Zeiss Jena Jenaval 0.9
- condensatore acromatico aplanatico 0.9 Zeiss Jena
- Carl Zeiss Jena buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99866.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99866.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99866-carl-zeiss-jena-jenaval-achr-apl-n-a-0-9-microscope-condenser-jenalumar-compatible
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99866.media.md
- Representative photo: https://www.microscopeparts.eu/photo/carl-zeiss-jena-jenaval-achr-apl-n-a-0-9-microscope-condenser-jenalumar-compatible-99866-2
- Representative video: https://www.microscopeparts.eu/play/99866-1
- Other parts from category Condensers: https://www.microscopeparts.eu/condensers
- More Condensers removed from microscope Carl Zeiss Jena Jenaval: https://www.microscopeparts.eu/condensers/from/carl-zeiss-jena/jenaval
- More Condensers compatible with microscope Carl Zeiss Jena Jenaval: https://www.microscopeparts.eu/condensers/for/carl-zeiss-jena/jenaval
- More Condensers removed from microscopes Carl Zeiss Jena: https://www.microscopeparts.eu/condensers/from/carl-zeiss-jena
- More Condensers compatible with microscopes Carl Zeiss Jena: https://www.microscopeparts.eu/condensers/for/carl-zeiss-jena

# 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: 2026-10-12