# Part name:
Leitz Wetzlar Lichteinstellupe microscope auxiliary telescope / phase centering eyepiece

# Original page URL:
https://www.microscopeparts.eu/part/leitz-orthoplan-wetzlar-lichteinstellupe-microscope-auxiliary-telescope-phase-centering-eyepiece-99473

# 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:
Eyepieces

# Description and specifications:
Centering telescope (auxiliary microscope) for aligning DIC prisms or phase contrast rings in the condenser.

Manufacturer: Leitz Wetzlar
Model: Lichteinstellupe (Centering / Focus telescope)
Mounting diameter: 23.2 mm + original 30 mm adapter

This centering telescope can be used for:
- DIC alignment (Differential Interference Contrast)
- Phase contrast alignment (centering phase rings)
- Aperture diaphragm inspection (iris diaphragm observation)Filament centering when setting up Köhler illumination

This is one of those microscope elements for which many different names are used. Among others:
- phase telescope
- phase contrast telescope
- phase alignment telescope
- phase adjustment telescope
- phase centering telescope
- phase contrast centering telescope
- phase contrast alignment telescope
- phase contrast adjustment telescope
- centering telescope
- condenser centering telescope
- condenser alignment telescope
- condenser adjustment telescope
- alignment telescope
- adjustment telescope
- inspection telescope
- aperture viewing telescope
- back focal plane viewing telescope
- auxiliary microscope
- phase contrast auxiliary microscope
- alignment auxiliary microscope
- centering auxiliary microscope
- adjustment auxiliary microscope
- auxiliary telescope
- centering scope
- alignment scope
- phase scope
- phase viewer
- phase contrast viewer
- phase centering eyepiece
- phase contrast eyepiece
- phase alignment eyepiece
- phase telescope eyepiece
- centering eyepiece
- condenser centering eyepiece
- adjustment eyepiece
- inspection eyepiece

# Examples of use
- for centering DIC prisms
- for centering phase contrast rings
- for observing the iris diaphragm
- for observing the filament when setting illumination according to the Köhler standard

# Removed from microscope:
Leitz Orthoplan

# Also compatible with the following microscopes:
- Leitz Orthoplan
- Leitz Diaplan
- Leitz Wetzlar microscope
- Leica DMLS
- Leitz Dialux
- Leitz Dialux 20
- Leitz Laborlux 11 Pol S
- Leitz SM-LUX
- Leitz Ortholux II
- Leica DMLB
- Leitz SM-D
- Zeiss Axiophot
- Zeiss Axioplan
- Zeiss Axioskop
- Zeiss Axioskop 2
- Carl Zeiss Jena Jenamed
- Carl Zeiss Jena Jenalab
- Carl Zeiss Jena Jenaval
- Carl Zeiss Jena Jenalumar
- PZO Biolar
- PZO Studar
- PZO MB-30
- PZO PZO K3Ph Phase Contrast Microscope Condenser (K4Ph, K3Ph1)
- Lomo Biolam
- Zeiss Standard 14
- Zeiss Standard GFL
- Zeiss Standard WL
- Hertel & Reuss Studio II
- Olympus BH-2 BHTU
- Will Wetzlar V300

# Names, descriptions, terms, and search contexts under which this part is searched.
- Leitz Orthoplan microscope repair parts
- Leitz Wetzlar Justierteleskop
- Leitz Orthoplan Hilfsmikroskop
- Leitz Mikroskop DIC Kondensor Okular
- Leitz Wetzlar Mikroskop Lichteinstellupe
- Leitz buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99473.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99473.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99473-leitz-orthoplan-wetzlar-lichteinstellupe-microscope-auxiliary-telescope-phase-centering-eyepiece
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99473.media.md
- Representative photo: https://www.microscopeparts.eu/photo/leitz-orthoplan-wetzlar-lichteinstellupe-microscope-auxiliary-telescope-phase-centering-eyepiece-99473-2
- Representative video: https://www.microscopeparts.eu/play/99473-1
- Other parts from category Eyepieces: https://www.microscopeparts.eu/eyepieces
- More Eyepieces removed from microscope Leitz Orthoplan: https://www.microscopeparts.eu/eyepieces/from/leitz/orthoplan
- More Eyepieces compatible with microscope Leitz Orthoplan: https://www.microscopeparts.eu/eyepieces/for/leitz/orthoplan
- More Eyepieces removed from microscopes Leitz: https://www.microscopeparts.eu/eyepieces/from/leitz
- More Eyepieces compatible with microscopes Leitz: https://www.microscopeparts.eu/eyepieces/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