# Part name:
AO Spencer 45x NA..66 CAT. 1116 microscope objective

# Original page URL:
https://www.microscopeparts.eu/part/ao-spencer-1036a-45x-na-66-cat-1116-microscope-objective-00765

# Part manufacturer:
AO Spencer

# Full manufacturer name:
American Optical Spencer

# Other names of this manufacturer:
- AO Spencer
- AO
- Spencer
- American Optical Spencer
- American Optical
- Reichert
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:
AO Spencer (American Optical) Microscope Objective

Manufacturer: AO Spencer
Model: 45x NA..66
Manufacturer Number: CAT. 1116
Magnification: 45x
Numerical Aperture: 0.66
Cover Glass: 0.17 mm
Thread: RMS
Tube Lens: infinity
Focal Lens: : 34 mm
Immersion: no

This particular objective was unscrewed from an AO Spencer 1036a microscope - but this microscope is most likely the same as the AO One-Ten model

# Examples of use
- if you have such a Vintage microscope and you want to complete it using original parts

# Removed from microscope:
AO Spencer 1036a

# Also compatible with the following microscopes:
- AO Spencer 1036a
- AO One-Ten

# Names, descriptions, terms, and search contexts under which this part is searched.
- AO Spencer 1036a microscope repair parts
- AO Spencer
- American Optical One-Ten
- AO Microstar 110 microscope
- Mikroskop Objektiv
- AO Spencer buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/00765.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/00765.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/00765-ao-spencer-1036a-45x-na-66-cat-1116-microscope-objective
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/00765.media.md
- Representative photo: https://www.microscopeparts.eu/photo/ao-spencer-1036a-45x-na-66-cat-1116-microscope-objective-00765-2
- Representative video: https://www.microscopeparts.eu/play/00765-1
- Other parts from category Objective: https://www.microscopeparts.eu/objective
- More Objective removed from microscope AO Spencer 1036a: https://www.microscopeparts.eu/objective/from/ao-spencer/1036a
- More Objective compatible with microscope AO Spencer 1036a: https://www.microscopeparts.eu/objective/for/ao-spencer/1036a
- More Objective removed from microscopes AO Spencer: https://www.microscopeparts.eu/objective/from/ao-spencer
- More Objective compatible with microscopes AO Spencer: https://www.microscopeparts.eu/objective/for/ao-spencer

# 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