# Part name:
40x Phase contrast objective disc ring for the PZO K3Ph, K3Ph1, KS and K4Ph  microscope condenser.

# Original page URL:
https://www.microscopeparts.eu/part/pzo-k3ph-phase-contrast-microscope-condenser-k4ph-k3ph1-40x-phase-contrast-objective-disc-ring-for-the-pzo-k3ph-k3ph1-ks-and-k4ph-microscope-condenser-00616

# 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:
Extras

# Description and specifications:
Component: Phase contrast ring disc
Objective: Compatible with 40x objective lenses
Accepts the following phase contrast objectives: Ph (Zernike, green stripe), PhA (negative, anoptral, yellow stripe*), PhS (positive, gray stripe), and A (amplitude phase contrast, brown stripe).
Condenser: Compatible with PZO K3Ph, K3Ph1, KS and K4Ph condensers. Not compatible with PZO K3Phz, KFF, and KFL condensers.
It also fits the PZO KS condenser (from the PZO MB30S microscope) after installing the appropriate polarizers.

The PZO phase contrast kit can be used with any microscope from any manufacturer that accepts a 39.5 mm condenser, although the top lens can be replaced with a 37 mm lens.

*Note: The yellow stripe on PZO PhA phase contrast objectives sometimes turns orange over time.

# Examples of use
- If you have a compatible PZO condenser that is missing this phase disc
- If the phase disc in your condenser is damaged (e.g., scratched)
- If you have a PZO phase objective and a microscope and a condenser from another company, you can insert this phase disc into this condenser and use the PZO objective
- If you want this item as a spare part

# Removed from:
PZO PZO K3Ph Phase Contrast Microscope Condenser (K4Ph, K3Ph1)

# Also compatible with the following microscopes:
- PZO PZO K3Ph Phase Contrast Microscope Condenser (K4Ph, K3Ph1)
- PZO Biolar
- PZO MB-30

# Names, descriptions, terms, and search contexts under which this part is searched.
- PZO PZO K3Ph Phase Contrast Microscope Condenser (K4Ph, K3Ph1) microscope repair parts
- Kondensor mikroskopowy kontrast fazowy
- krążek
- wkładka
- ring
- disci
- Disk
- Phase Contrast microscope condenser
- Phasenkontrast Phasen Kontrast Mikroskop Mikroskopkondensor
- Phv
- PZO k3ph
- k3ph1
- k4ph
- Obiektyw Ph
- Pha
- Phs
- Ph
- kontasr dodatni
- positive phase contrast
- anoptral phase contrast
- negative phase contrast
- anoptralny
- ujemny.
- PZO buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/00616.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/00616.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/00616-pzo-k3ph-phase-contrast-microscope-condenser-k4ph-k3ph1-40x-phase-contrast-objective-disc-ring-for-the-pzo-k3ph-k3ph1-ks-and-k4ph-microscope-condenser
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/00616.media.md
- Representative photo: https://www.microscopeparts.eu/photo/pzo-k3ph-phase-contrast-microscope-condenser-k4ph-k3ph1-40x-phase-contrast-objective-disc-ring-for-the-pzo-k3ph-k3ph1-ks-and-k4ph-microscope-condenser-00616-2
- Other parts from category Extras: https://www.microscopeparts.eu/extras
- More Extras removed from microscope PZO PZO K3Ph Phase Contrast Microscope Condenser (K4Ph, K3Ph1): https://www.microscopeparts.eu/extras/from/pzo/pzo-k3ph-phase-contrast-microscope-condenser-k4ph-k3ph1
- More Extras compatible with microscope PZO PZO K3Ph Phase Contrast Microscope Condenser (K4Ph, K3Ph1): https://www.microscopeparts.eu/extras/for/pzo/pzo-k3ph-phase-contrast-microscope-condenser-k4ph-k3ph1
- More Extras removed from microscopes PZO: https://www.microscopeparts.eu/extras/from/pzo
- More Extras compatible with microscopes PZO: https://www.microscopeparts.eu/extras/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: 2026-08-02