# Part name:
Zeiss Primostar Plan-ACHROMAT 40x/0,65 oo/0,17 P/N 415500-1602 microscope objective | RMS thread, infinity corrected

# Original page URL:
https://www.microscopeparts.eu/part/zeiss-primostar-plan-achromat-40x-0-65-oo-0-17-p-n-415500-1602-microscope-objective-rms-thread-infinity-corrected-99818

# 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:
Primo Plan-ACHROMAT 40x/0.65 ∞/0.17 microscope objective by Carl Zeiss for Zeiss Primostar microscopes.

Basic parameters of this objective:
Manufacturer: Zeiss
Magnification: 40x
Correction: plan achromatic
Engraving on the objective: Primo Plan-ACHROMAT 40x/0,65 ∞/0,17 415500-1602
Numerical aperture N.A.: 0.65
Working distance WD: 0.61 mm
Manufacturer catalog number: 415500-1602
Tube length: infinity
Cover glass: yes, 0.17 mm thick
Immersion: no (dry objective)
Thread: RMS

This objective works properly only with the Zeiss Primostar line. It does not work properly with other Zeiss microscopes, even if they also have an RMS thread and are infinity corrected.

NOTE: many sources state that the Zeiss objective P/N 415500-1611-001 is the successor of this objective. This is not true. In fact, Zeiss 415500-1611-001 is a 40x objective designed for use without a cover glass, mainly for reflected-light (EPI) work.

# Examples of use
- if an objective is missing and you want to complete your Zeiss Primostar microscope with original parts
- if you have this objective, but it is in very poor condition, e.g. the lens is scratched, hazy or contaminated with immersion oil
- if you want to keep this objective as a spare

# Removed from microscope:
Zeiss Primostar

# Also compatible with the following microscopes:
Zeiss Primostar

# Names, descriptions, terms, and search contexts under which this part is searched.
- Zeiss Primostar microscope repair parts
- Zeiss Primostar Plan-ACHROMAT 40x microscope objective
- Zeiss Primo Plan-ACHROMAT infinity 415500-1602 microscope objective
- Zeiss Primostar Plan-ACHROMAT 40x/0.65 Mikroskop Objektiv
- Zeiss Primo 415500-1602 Mikroskopobjektiv Unendlichkeit
- Zeiss buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99818.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99818.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99818-zeiss-primostar-plan-achromat-40x-0-65-oo-0-17-p-n-415500-1602-microscope-objective-rms-thread-infinity-corrected
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99818.media.md
- Representative photo: https://www.microscopeparts.eu/photo/zeiss-primostar-plan-achromat-40x-0-65-oo-0-17-p-n-415500-1602-microscope-objective-rms-thread-infinity-corrected-99818-2
- Representative video: https://www.microscopeparts.eu/play/99818-1
- Other parts from category Objective: https://www.microscopeparts.eu/objective
- More Objective removed from microscope Zeiss Primostar: https://www.microscopeparts.eu/objective/from/zeiss/primostar
- More Objective compatible with microscope Zeiss Primostar: https://www.microscopeparts.eu/objective/for/zeiss/primostar
- 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: 2026-09-25