# Part name:
PZO Biolar FL - microscope monocular head with OG1 / GG9 fluorescence filter

# Original page URL:
https://www.microscopeparts.eu/part/pzo-biolar-fl-microscope-monocular-head-with-og1-gg9-fluorescence-filter-99013

# 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:
Heads

# Description and specifications:
This is an original monocular microscope head (so-called monocular) with a mounted fluorescence barrier filter.

Basic parameters.
Manufacturer: PZO
Item: Monocular microscope head for a fluorescence microscope
Model: PZO MNJ-4
Mounting method: dovetail, diameter 43 mm
Supported eyepieces: 23.2 mm
Mounted filter: OG1 / GG9
For microscopes: PZO Biolar FL and PZO MB-30 FL

Why are monocular microscope heads often used in fluorescence microscopy? Fluorescence microscopy (especially older designs) produces a relatively dark image, so it is beneficial for 100% of the light beam to reach a single eye. A binocular microscope head would split the light 50% to each eye, which could result in an image that is too dark.

The barrier fluorescence filter PZO OG1 / GG9 mounted under the microscope head protects the eyes from the harmful spectrum of fluorescence illumination.

Note - there is also a PZO GG9 fluorescence filter (also available in my catalog). It is important to select the correct filters for the appropriate applications.

The OG1 / GG9 filter is a separate element that can be detached from the microscope head. It is mounted under the microscope head in a dedicated slot provided for this purpose.

# Examples of use
- if the complete microscope head is missing from your microscope
- if this filter is missing from your PZO fluorescence set
- if you want to use this element with microscopes from another manufacturer
- if you want to remove the filter itself and use it for your own DIY purposes

# Removed from microscope:
PZO Biolar FL

# Also compatible with the following microscopes:
- PZO Biolar FL
- PZO MB-30 FL
- PZO Biolar

# Names, descriptions, terms, and search contexts under which this part is searched.
- PZO Biolar FL microscope repair parts
- Mikroskop
- microscope
- Fluorescencja
- fluorescencyjny
- do fluorescencji
- fluorescence
- Fluoreszenz
- Filter
- Fluoreszenzfilter
- OG1 GG9
- PZO Biolar FL
- PZO MB30 FL
- PZO buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99013.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99013.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99013-pzo-biolar-fl-microscope-monocular-head-with-og1-gg9-fluorescence-filter
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99013.media.md
- Representative photo: https://www.microscopeparts.eu/photo/pzo-biolar-fl-microscope-monocular-head-with-og1-gg9-fluorescence-filter-99013-2
- Representative video: https://www.microscopeparts.eu/play/99013-1
- Other parts from category Heads: https://www.microscopeparts.eu/heads
- More Heads removed from microscope PZO Biolar FL: https://www.microscopeparts.eu/heads/from/pzo/biolar-fl
- More Heads compatible with microscope PZO Biolar FL: https://www.microscopeparts.eu/heads/for/pzo/biolar-fl
- More Heads removed from microscopes PZO: https://www.microscopeparts.eu/heads/from/pzo
- More Heads compatible with microscopes PZO: https://www.microscopeparts.eu/heads/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: 2026-06-30