# Part name: Carl Zeiss Jena Jenalumar microscope objective nosepiece / revolver holder # Original page URL: https://www.microscopeparts.eu/part/carl-zeiss-jena-jenalumar-microscope-objective-nosepiece-revolver-holder-99682 # 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: Housings and its parts # Description and specifications: Holder for mounting the objective nosepiece to the microscope arm of a Carl Zeiss Jena Jenalumar microscope. This component is located between the rotating objective nosepiece and the microscope arm. In the Carl Zeiss Jena Jenalumar microscope, a fluorescence filter cube slides into position above the objective revolver. Inside this holder there is a longitudinal dovetail guide along which the fluorescence filter cubes slide. It also contains a spring steel detent that provides a distinct "click" to indicate the filter position as the fluorescence filter cube is moved along the dovetail guide. The objective revolver is attached to this holder with screws, and the complete assembly consisting of the holder and objective turret is then screwed to the microscope arm. The complete objective nosepiece module for Carl Zeiss Jena Jenalumar or Jenaval microscopes consists of: - the objective revolver (also called the objective nosepiece, nosepiece disc or objective turret) - the intermediate mounting bracket (nosepiece holder). In both microscope models, the Carl Zeiss Jena Jenalumar and the Carl Zeiss Jena Jenaval, the first component—the objective revolver—is identical and interchangeable between the two models. Only the intermediate mounting bracket differs, as it attaches the revolver to the microscope arm. In other words, the nosepiece holder used in the Carl Zeiss Jena Jenalumar microscope is different from the one used in the Carl Zeiss Jena Jenaval microscope, but both holders have exactly the same objective revolvers attached to them. This listing includes only the intermediate holder for the Carl Zeiss Jena Jenalumar model, without the objective nosepiece. Interestingly, this component is made of aluminium, whereas the corresponding component performing the same function in the Carl Zeiss Jena Jenaval microscope is manufactured from a ZnAl alloy. Cast or injection-moulded ZnAl components made by Carl Zeiss Jena carry identification numbers that allow them to be identified. In the Jenaval microscope this number is 2643 (full marking: Si10 CZ 2643). The objective nosepiece holder used in the Jenalumar does not carry such a number. Another useful piece of information is that the sliding fluorescence filter cube from the Carl Zeiss Jena Jenamed Fluorescence microscope fits the dovetail guide incorporated into this nosepiece holder. The gallery includes photographs of the complete assembly consisting of the objective nosepiece and its holder for the Jenalumar microscope, making it clear how these two components are connected. This database also contains, under item number 99678, the separate objective revolver without the holder. # Examples of use - this microscope part is suitable as a replacement if the corresponding component in your microscope has been damaged (for example, if the spring detent has come loose) - if you have a Carl Zeiss Jena Jenalumar microscope without an objective nosepiece and would like to install an objective revolver from a Jenaval microscope - if you are building your own DIY project using a fluorescence filter cube from a Jenalumar or Jenamed Fluorescence microscope and need this dovetail guide for that purpose # Removed from microscope: Carl Zeiss Jena Jenalumar # Also compatible with the following microscopes: Carl Zeiss Jena Jenalumar # Names, descriptions, terms, and search contexts under which this part is searched. - Carl Zeiss Jena Jenalumar microscope repair parts - Carl Zeiss Jena Jenalumar Mikroskop Objektiv-Revolver-Halter - Carl Zeiss Jena Jenalumar microscope objective nosepiece mounting holder - Carl Zeiss Jena buy spare parts # Related URLs: - Markdown po polsku: https://www.serwismikroskopowy.pl/part/99682.md - Markdown auf Deutsch: https://www.mikroskopteile.de/part/99682.md - Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99682-carl-zeiss-jena-jenalumar-microscope-objective-nosepiece-revolver-holder - Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99682.media.md - Representative photo: https://www.microscopeparts.eu/photo/carl-zeiss-jena-jenalumar-microscope-objective-nosepiece-revolver-holder-99682-2 - Representative video: https://www.microscopeparts.eu/play/99682-1 - Other parts from category Housings and its parts: https://www.microscopeparts.eu/housings-and-its-parts - More Housings and its parts removed from microscope Carl Zeiss Jena Jenalumar: https://www.microscopeparts.eu/housings-and-its-parts/from/carl-zeiss-jena/jenalumar - More Housings and its parts compatible with microscope Carl Zeiss Jena Jenalumar: https://www.microscopeparts.eu/housings-and-its-parts/for/carl-zeiss-jena/jenalumar - More Housings and its parts removed from microscopes Carl Zeiss Jena: https://www.microscopeparts.eu/housings-and-its-parts/from/carl-zeiss-jena - More Housings and its parts compatible with microscopes Carl Zeiss Jena: https://www.microscopeparts.eu/housings-and-its-parts/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: 2026-08-03