# Part name:
PZO UPI / DIC microscope auxiliary telescope / phase centering eyepiece

# Original page URL:
https://www.microscopeparts.eu/part/pzo-biolar-upi-dic-microscope-auxiliary-telescope-phase-centering-eyepiece-99105

# Part manufacturer:
PZO

# Full manufacturer name:
Polskie Zaklady Optyczne

# Other names of this manufacturer:
- PZO Warszawa
- PZO Poland
- PZO Warszawa Poland
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:
Auxiliary microscope for adjusting DIC prisms in the condenser of the PZO KPI-2 microscope.

Manufacturer: PZO
Mounting diameter: 23.2 mm

This telescopic eyepiece contains two lines in the field of view used for adjusting DIC interference fringes, but this is the only difference compared to an otherwise identical eyepiece used for adjusting phase contrast. Therefore it can be used:
- for adjusting DIC
- for adjusting phase contrast
- for observing the iris diaphragm
- for observing the filament when setting illumination according to the Köhler standard

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:
PZO Biolar

# Also compatible with the following microscopes:
- 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
- Leitz Diaplan

# Names, descriptions, terms, and search contexts under which this part is searched.
- PZO Biolar microscope repair parts
- PZO KPI-2 Justierteleskop
- PZO DIK Hilfsmikroskop
- PZO Pluta DIC
- PZO KPI-2 DIC Kondensor
- PZO MPI-5 DIC Kopf
- PZO MPI-3 DIC Head
- PZO buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99105.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99105.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99105-pzo-biolar-upi-dic-microscope-auxiliary-telescope-phase-centering-eyepiece
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99105.media.md
- Representative photo: https://www.microscopeparts.eu/photo/pzo-biolar-upi-dic-microscope-auxiliary-telescope-phase-centering-eyepiece-99105-2
- Representative video: https://www.microscopeparts.eu/play/99105-1
- Other parts from category Eyepieces: https://www.microscopeparts.eu/eyepieces
- More Eyepieces removed from microscope PZO Biolar: https://www.microscopeparts.eu/eyepieces/from/pzo/biolar
- More Eyepieces compatible with microscope PZO Biolar: https://www.microscopeparts.eu/eyepieces/for/pzo/biolar
- More Eyepieces removed from microscopes PZO: https://www.microscopeparts.eu/eyepieces/from/pzo
- More Eyepieces compatible with microscopes PZO: https://www.microscopeparts.eu/eyepieces/for/pzo

# 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