
MINOLTA - Minolta AF 20mm f28 Service
by MINOLTAComprehensive service manual for the Minolta AF 20mm F2.8 wide-angle lens, covering both MAXXUM model variants (2579-100 and 2579-600). This technical repair guide delivers complete specifications and in-depth optical analysis for qualified technicians performing maintenance and troubleshooting on this premium optic. Documentation details the optical construction with 10 elements arranged in 9 groups, retrofocus focusing design, and Minolta Achromatic multi-coating technology. Technical specifications include a 94° angle of view, Minolta A mount compatibility, and 5 signal contacts for seamless camera body integration. Precise dimensional data is provided throughout—285 g weight, 77.5 mm maximum barrel diameter, and 53.5 mm length—alongside complete accessory specifications: 72 mm filter thread size and Minolta bayonet hood interface. The autofocus mechanism section documents the preset diaphragm system, 0.25 m minimum focus distance, and distance scales marked in both feet and meters for field reference. An extensive parts list cross-references every component with factory part numbers, supported by a detailed exploded assembly diagram showing the complete internal configuration and mechanical relationships. This workshop manual enables efficient diagnosis, component identification, and repair procedures for lens maintenance and restoration work.
Documentation must be downloaded on a computer (PC, Mac, or Linux).
Do not use a smartphone or tablet to download documentation; they generally lack sufficient memory capacity to handle large files, and few users know how to locate the download folder on these devices.
Once downloaded, you can use it right away and even print the pages you need, or use your smartphone in photo mode to translate into the language of your choice: Google Translate
Document Details
- Format
- Pages
- 15
- Size
- 3.6 MB
- Category
- Photography