# Part name:
Hertel & Reuss 40x Microscope Objective - 40:1 N.A. 0.65 PO. for transmitted light polarisation

# Original page URL:
https://www.microscopeparts.eu/part/hertel-reuss-cn-fl-40x-microscope-objective-40-1-n-a-0-65-po-for-transmitted-light-polarisation-00560

# Part manufacturer:
Hertel & Reuss

# Full manufacturer name:
Hertel & Reuss Kassel (West Germany)

# Other names of this manufacturer:
- H&R
- Hertel und Reuss
- Hertel & Reuss Optik Kassel
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:
Perfect exterior and optics. It's not easy to find a lens in this condition on the used market.

Manufacturer: Hertel & Reuss Kassel (West Germany)
Model: 40:1 N.A. 0.65 PO.
Magnification: 40x
Color correction: achromat
Numerical aperture: 0.65
Tube length: 170 mm
Focal length: 37 mm
Thread: RMS
Coverglass: yes, 0,17 mm
Immersion: no
Info: polarisation objective

Of course, the "PO" designation doesn't mean it's designed "solely" for polarizing. It can be used in any microscope for both polarization and  brightfield transmitted light.

# Examples of use
- If you don't have such a lens
- If your lens is damaged or in very poor condition
- If you need a lens with such a powerful magnification (40x) to work with polarisation

# Removed from microscope:
Hertel & Reuss CN-fl

# Names, descriptions, terms, and search contexts under which this part is searched.
- Hertel & Reuss CN-fl microscope repair parts
- Pol
- Polaryzacja
- obiektyw mikroskopowy polaryzacyjny
- polarisation
- polarizing
- polarization
- Mikroskopobjektiv
- Mikroskop Objektiv
- Hertel & Reuss buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/00560.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/00560.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/00560-hertel-reuss-cn-fl-40x-microscope-objective-40-1-n-a-0-65-po-for-transmitted-light-polarisation
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/00560.media.md
- Representative photo: https://www.microscopeparts.eu/photo/hertel-reuss-cn-fl-40x-microscope-objective-40-1-n-a-0-65-po-for-transmitted-light-polarisation-00560-2
- Other parts from category Objective: https://www.microscopeparts.eu/objective
- More Objective removed from microscope Hertel & Reuss CN-fl: https://www.microscopeparts.eu/objective/from/hertel-reuss/cn-fl
- More Objective compatible with microscope Hertel & Reuss CN-fl: https://www.microscopeparts.eu/objective/for/hertel-reuss/cn-fl
- More Objective removed from microscopes Hertel & Reuss: https://www.microscopeparts.eu/objective/from/hertel-reuss
- More Objective compatible with microscopes Hertel & Reuss: https://www.microscopeparts.eu/objective/for/hertel-reuss

# 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