# Part name:
Carl Zeiss Jena Ergaval / Amplival microscope condenser holder model MZ

# Original page URL:
https://www.microscopeparts.eu/part/carl-zeiss-jena-ergaval-amplival-microscope-condenser-holder-model-mz-99695

# 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:
Condenser holders (supports)

# Description and specifications:
Holder for mounting interchangeable microscope condensers for Carl Zeiss Jena microscopes.

This condenser holder is a separate, removable module that can be unscrewed. It is mounted onto the dovetail guide located underneath the microscope stage carrier and secured with a clamping screw.

Carl Zeiss Jena Ergaval microscopes were originally equipped with a condenser attached to the "MO" holder. This holder has a permanently mounted iris diaphragm and wide-field lens, while the condenser itself is screwed into the upper thread. In this configuration, the condenser cannot be exchanged.
The Carl Zeiss Jena Fluoval uses a similar arrangement, whereas the Carl Zeiss Jena Amplival was originally equipped with a panchromatic condenser.

If the user wishes to use other condensers (including those made by manufacturers other than Carl Zeiss Jena), the original condenser holder must be replaced with the MZ condenser holder. Once this has been done, any microscope condenser with a mounting diameter of 39.5 mm can be installed. Condensers with a 37 mm mounting diameter can also be used if they are fitted with a suitable adapter ring.

This is exactly such a holder for interchangeable condensers.

Basic specifications:
Manufacturer: Carl Zeiss Jena
Original documentation name and model: Kondensor-Einhänger MZ
Colour: grey, the version manufactured for the Mikroval microscope series
Internal diameter: for mounting condensers with a 39.5 mm mounting diameter (for example the Carl Zeiss Jena cardioid darkfield condenser)
Condenser retaining screw: yes, central condenser clamping screw
Centering screws: yes, two condenser centering screws
Microscope mounting: dovetail

Although this component is grey, it is also compatible with older black Carl Zeiss Jena microscopes from the 1950s and 1960s (it simply will not look completely original unless it is repainted).

This condenser holder is compatible with, among others:
- Carl Zeiss Jena Ng (black microscope)
- Carl Zeiss Jena Polmi-A (black microscope)
- Carl Zeiss Jena Nf (black microscope)
- Carl Zeiss Jena Nu (the NU-2 version is grey)
- Carl Zeiss Jena Ergaval (grey microscope)
- Carl Zeiss Jena Fluoval / Fluoval-2 (grey microscope)
- Carl Zeiss Jena Amplival and its variants (grey microscope)
- Carl Zeiss Jena Docuval (grey microscope)

Various names are used for this microscope component, including:
- condenser holder
- condenser carrier
- condenser mount
- condenser support

The last photograph includes an excerpt from the original manufacturer's documentation. An arrow indicates this exact model of condenser holder, making it easy to identify the component.

# Examples of use
- if you own a Carl Zeiss Jena microscope with a non-interchangeable condenser and would like to replace the original holder with one for interchangeable condensers
- if you want to use a darkfield condenser on your Carl Zeiss Jena Ergaval microscope
- if your condenser holder is damaged and needs to be replaced

# Removed from microscope:
Carl Zeiss Jena Ergaval

# Also compatible with the following microscopes:
- Carl Zeiss Jena Ergaval
- Carl Zeiss Jena Amplival
- Carl Zeiss Jena Docuval
- Carl Zeiss Jena Vertival
- Carl Zeiss Jena Epival
- Carl Zeiss Jena Metaval
- Carl Zeiss Jena Fluoval
- Carl Zeiss Jena Fluoval-2
- Carl Zeiss Jena Nf
- Carl Zeiss Jena NfPk
- Carl Zeiss Jena NU
- Carl Zeiss Jena NU-2
- Carl Zeiss Jena Ng
- Carl Zeiss Jena Polmi A

# Names, descriptions, terms, and search contexts under which this part is searched.
- Carl Zeiss Jena Ergaval microscope repair parts
- Carl Zeiss Jena Mikroskop 39.5mm Kondensor-Halter
- Carl Zeiss Jena Ergaval Dunkelfeld Mikroskop-Kondensor Einhänger MZ
- Carl Zeiss Jena Docuval Dunkelfeld-Kondensor-Halter
- Carl Zeiss Jena microscope 39.5mm condenser holder
- Carl Zeiss Jena Ergaval dark field condenser support holder MZ
- Carl Zeiss Jena buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99695.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99695.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99695-carl-zeiss-jena-ergaval-amplival-microscope-condenser-holder-model-mz
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99695.media.md
- Representative photo: https://www.microscopeparts.eu/photo/carl-zeiss-jena-ergaval-amplival-microscope-condenser-holder-model-mz-99695-2
- Representative video: https://www.microscopeparts.eu/play/99695-1
- Other parts from category Condenser holders (supports): https://www.microscopeparts.eu/condenser-holders-supports
- More Condenser holders (supports) removed from microscope Carl Zeiss Jena Ergaval: https://www.microscopeparts.eu/condenser-holders-supports/from/carl-zeiss-jena/ergaval
- More Condenser holders (supports) compatible with microscope Carl Zeiss Jena Ergaval: https://www.microscopeparts.eu/condenser-holders-supports/for/carl-zeiss-jena/ergaval
- More Condenser holders (supports) removed from microscopes Carl Zeiss Jena: https://www.microscopeparts.eu/condenser-holders-supports/from/carl-zeiss-jena
- More Condenser holders (supports) compatible with microscopes Carl Zeiss Jena: https://www.microscopeparts.eu/condenser-holders-supports/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: 2026-08-05