# Part name:
Optika Italy B-383POL IOS N-PLAN POL 10x/0.25 oo/0.17 microscope objective for polarization

# Original page URL:
https://www.microscopeparts.eu/part/optika-italy-b-383pol-ios-n-plan-pol-10x-0-25-oo-0-17-microscope-objective-for-polarization-99843

# Part manufacturer:
Optika Italy

# Full manufacturer name:
OPTIKA Italy S.r.l.

# Other names of this manufacturer:
- OPTIKA S.r.l.
- OPTIKA Italy
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:
Planachromatic microscope objective with 10x magnification for the Optika Italy B-383POL polarizing microscope.

Manufacturer: OPTIKA (Italy)
Marking on the objective: IOS N-PLAN POL 10x/0.25 ∞/0.17
Manufacturer catalogue number: M-145P
Magnification: 10x
Correction: PLAN achromatic
Optical system: IOS (Infinity Optical System - Optika's own tube lens)
Numerical aperture N.A.: 0.25
Working distance W.D.: 5.8 mm
Tube length: infinity
Parfocal distance: 45 mm
Field number F.N.: 20
Cover glass: according to the marking on the objective - yes, 0.17 mm thick, although objectives of such low magnification can usually also be used without a cover glass
Immersion: no (this is a dry objective)
Thread: RMS
Polarization: yes, this is a strain-free objective - the glass and the mount are selected so that they introduce no birefringence of their own, since otherwise the background would never be black between crossed polarizers

The OPTIKA B-383POL microscope is the polarizing version of the biological OPTIKA B-380 microscope. This objective can be used both in the B-383POL and in the B-380.

# Examples of use
- if you own the Optika B-383POL polarizing microscope or the biological B-380 and this objective is missing
- if you already have such an objective in your microscope, but it is in very poor condition or damaged
- if you want to have such an objective as a spare

# Removed from microscope:
Optika Italy B-383POL

# Also compatible with the following microscopes:
- Optika Italy B-383POL
- OPTIKA Italy B-380

# Names, descriptions, terms, and search contexts under which this part is searched.
- Optika Italy B-383POL microscope repair parts
- Optika B-383POL Objektiv 10x Ersatz
- IOS N-PLAN POL 10x/0.25 Objektiv gesucht
- Optika Italy B-383POL Polarisationsmikroskop Objektiv 10x
- Optika M-145P Objektiv kaufen
- Optika B-380 Objektiv 10x nachrüsten
- Optika B-383POL Objektiv gesprungen
- Optika Objektiv 10x spannungsfrei Analysator dunkles Feld
- Optika Objektiv 10x 0.25 IOS unendlich Polarisation
- Optika M-145P objective replacement
- strain-free 10x objective for Optika polarizing microscope
- spare 10x objective Optika B-383POL
- Optika 10x objective front lens scratched
- Optika B-380 10x objective cracked
- DIY polarizing microscope Optika B-380 10x objective
- polarizing microscope objective 10x Optika Italy
- Optika B-383POL Objektivrevolver Objektiv fehlt 10x
- objektiv Optika 10x pro polarizační mikroskop
- obiettivo Optika B-383POL 10x polarizzazione
- obiettivo IOS N-PLAN POL 10x ricambio Optika
- objetivo Optika B-383POL 10x polarización
- objetivo Optika M-145P microscopio repuesto
- obiektyw 10x Optika B-383POL polaryzacyjny
- Optika Italy buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99843.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99843.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99843-optika-italy-b-383pol-ios-n-plan-pol-10x-0-25-oo-0-17-microscope-objective-for-polarization
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99843.media.md
- Representative photo: https://www.microscopeparts.eu/photo/optika-italy-b-383pol-ios-n-plan-pol-10x-0-25-oo-0-17-microscope-objective-for-polarization-99843-2
- Representative video: https://www.microscopeparts.eu/play/99843-1
- Other parts from category Objective: https://www.microscopeparts.eu/objective
- More Objective removed from microscope Optika Italy B-383POL: https://www.microscopeparts.eu/objective/from/optika-italy/b-383pol
- More Objective compatible with microscope Optika Italy B-383POL: https://www.microscopeparts.eu/objective/for/optika-italy/b-383pol
- More Objective removed from microscopes Optika Italy: https://www.microscopeparts.eu/objective/from/optika-italy
- More Objective compatible with microscopes Optika Italy: https://www.microscopeparts.eu/objective/for/optika-italy

# 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: 2026-09-29