# Part name:
Zeiss OPMI 3 / Vario (Opton) surgical microscope 1,6x T* (30 16 68) auxiliary photo objective magnification lens with 48 mm mounting dovetail and holder for 30 mm filter

# Original page URL:
https://www.microscopeparts.eu/part/zeiss-opmi-3-vario-opton-surgical-microscope-1-6x-t-30-16-68-auxiliary-photo-objective-magnification-lens-99622

# Part manufacturer:
Zeiss

# Full manufacturer name:
Carl Zeiss West Germany

# Other names of this manufacturer:
- Carl Zeiss West
- Carl Zeiss West Germany
- Opton
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:
1.6× auxiliary magnification objective for the photo adapter of Zeiss OPMI / Opton OPMI surgical microscopes.

This objective provides additional magnification, improves camera sensor coverage and helps eliminate vignetting when using a photographic camera (e.g. a DSLR) or a digital camera connected to a Zeiss (Opton) OPMI surgical microscope via a photo adapter.

Mechanically, this objective is installed between the photo adapter and the camera. It also incorporates a holder for an additional 30 mm filter positioned in the optical path (for example, a polarizing filter, neutral-density filter or colour filter).

Basic specifications of this auxiliary objective:
Manufacturer: Zeiss
Note regarding the Zeiss brand: the objective bears the "Opton" logo – this was the trade name under which Zeiss exported its products (see the explanation at the end of this product description)
Marking: Opton 1.6× T* (West Germany)
Manufacturer number: most probably 30 16 68 (alternative notation: 301668) – note – not confirmed in the manufacturer's documentation
Magnification: 1.6×
Anti-reflection coating: yes – multi-layer T* coating (red star), the successor to the earlier single-layer T coating. It reduces reflections and improves contrast in the photographic optical path
Mounting interface: 48 mm dovetail (male on one side, female on the other)
Filter holder: yes, for a round 30 mm filter

This objective is compatible with every photo adapter, beam splitter or auxiliary observation tube for Zeiss OPMI / Opton OPMI surgical microscopes equipped with a 48 mm dovetail connection.

Important:
- this is not a camera lens
- this is not an objective for a Zeiss OPMI surgical microscope
- this is not a Barlow lens for a Zeiss OPMI microscope objective
- this is not a front-mounted auxiliary objective — it is not mounted onto the main objective of a Zeiss OPMI surgical microscope

Note regarding the manufacturer's name: Carl Zeiss West Germany marketed its OPMI surgical microscopes (and their accessories) under the following names:
- Zeiss OPMI
- Opton OPMI
These are the same microscopes and the same components.
When the name "Opton" appears, it is printed on the label, while the word "Zeiss" underneath has often been washed off, worn away or scraped off at the factory. The reason for the deliberate removal of the "Zeiss" name and the use of the "Opton" name was an agreement with Carl Zeiss Jena, which operated in the former Eastern Bloc (communist bloc), to avoid using the name "Zeiss" on export products.

# Examples of use
- if you want to connect a photographic camera or digital camera to a Zeiss OPMI / Opton OPMI surgical microscope and obtain additional magnification

# Removed from microscope:
Zeiss OPMI 3

# Also compatible with the following microscopes:
- Zeiss OPMI 1
- Zeiss OPMI 3
- Zeiss OPMI 6
- Zeiss OPMI Pico
- Zeiss OPMI Vario

# Names, descriptions, terms, and search contexts under which this part is searched.
- Zeiss OPMI 3 microscope repair parts
- Zeiss OPMI (Opton) surgical microscope 1.6x auxiliary objective for photo adapter
- Zeiss OPMI (Opton) surgical microscope 1.6x auxiliary objective for camera adapter
- Zeiss OPMI 48 mm dovetail magnifiction lens for photo adapter
- Zeiss OPMI (Opton) Operationsmikroskop 1.6x Objektiv für Fotoadapter
- Zeiss OPMI (Opton) 1.6x Objektiv für Kameraadapter
- Zeiss OPMI (Opton) 1.6x Vergrößerung-Linse mit 48 mm Schwalbenschwanz
- Zeiss buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99622.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99622.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99622-zeiss-opmi-3-vario-opton-surgical-microscope-1-6x-t-30-16-68-auxiliary-photo-objective-magnification-lens
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99622.media.md
- Representative photo: https://www.microscopeparts.eu/photo/zeiss-opmi-3-vario-opton-surgical-microscope-1-6x-t-30-16-68-auxiliary-photo-objective-magnification-lens-99622-2
- Representative video: https://www.microscopeparts.eu/play/99622-1
- Other parts from category Objective: https://www.microscopeparts.eu/objective
- More Objective removed from microscope Zeiss OPMI 3: https://www.microscopeparts.eu/objective/from/zeiss/opmi-3
- More Objective compatible with microscope Zeiss OPMI 3: https://www.microscopeparts.eu/objective/for/zeiss/opmi-3
- More Objective removed from microscopes Zeiss: https://www.microscopeparts.eu/objective/from/zeiss
- More Objective compatible with microscopes Zeiss: https://www.microscopeparts.eu/objective/for/zeiss

# 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: 2026-07-23