# Part name:
Carl Zeiss Jena Ph HI 90 1.25 phase contrast microscope objective with 90x magnification

# Original page URL:
https://www.microscopeparts.eu/part/carl-zeiss-jena-lg-ph-hi-90-1-25-phase-contrast-microscope-objective-with-90x-magnification-00548

# 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:
Objective

# Description and specifications:
Manufacturer: Carl Zeiss Jena
Model: Ph HI 90 1.25
Magnification: 90x
Correction: Achromat
Numerical Aperture: 1.25
Tube Length: 160 mm
Focal Length: 33 mm
Cover Glass: 0.17 mm
Immersion: Yes, oil immersion
Thread: RMS
Info: Ph = phase contrast. NOTE - this is not a "Phv" type contrast.

This objective lens is in excellent condition, with no signs of use. It's difficult to find an objective lens of this quality on the used parts market.

It can be used with any microscope from any manufacturer, along with a compatible phase contrast condenser. The microscope must be compatible, meaning it supports RMS objectives, TL = 160 mm, FL = 33 mm.

After installing the 12 mm adapter, this objective lens will have FL = 45 mm.

# Examples of use
- If you have a microscope without objectives and need to restock it using original parts
- If you have a microscope that doesn't have an objective lens with this magnification and want to restock it
- If you have such an objective lens, but it's of very poor quality or damaged
- If you're cautious and want to have a spare objective lens

# Removed from microscope:
Carl Zeiss Jena Lg

# Also compatible with the following microscopes:
- Carl Zeiss Jena Lg
- Carl Zeiss Jena Lr
- Carl Zeiss Jena Lu
- Carl Zeiss Jena Lumipan
- Carl Zeiss Jena Nf
- Carl Zeiss Jena NfPk
- Carl Zeiss Jena Ng

# Names, descriptions, terms, and search contexts under which this part is searched.
- Carl Zeiss Jena Lg microscope repair parts
- Mikroskop Objektiv
- obiektyw mikroskopowy
- lens
- glass
- soczewka
- microscope objective
- kontrast fazowy
- Phase Contrast
- Phasen Kontrast
- Phasenkontrast
- Ph
- Carl Zeiss Jena buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/00548.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/00548.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/00548-carl-zeiss-jena-lg-ph-hi-90-1-25-phase-contrast-microscope-objective-with-90x-magnification
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/00548.media.md
- Representative photo: https://www.microscopeparts.eu/photo/carl-zeiss-jena-lg-ph-hi-90-1-25-phase-contrast-microscope-objective-with-90x-magnification-00548-2
- Other parts from category Objective: https://www.microscopeparts.eu/objective
- More Objective removed from microscope Carl Zeiss Jena Lg: https://www.microscopeparts.eu/objective/from/carl-zeiss-jena/lg
- More Objective compatible with microscope Carl Zeiss Jena Lg: https://www.microscopeparts.eu/objective/for/carl-zeiss-jena/lg
- More Objective removed from microscopes Carl Zeiss Jena: https://www.microscopeparts.eu/objective/from/carl-zeiss-jena
- More Objective compatible with microscopes Carl Zeiss Jena: https://www.microscopeparts.eu/objective/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: 2026-08-02