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Pete Ganzel | profile | all galleries >> Tinkering >> Disassembly of Minolta Maxxum 28-135mm f/4 Zoom Lens tree view | thumbnails | slideshow

Disassembly of Minolta Maxxum 28-135mm f/4 Zoom Lens

This beautifully made, all metal lens is probably the best example
of the craftsmanship that Minolta put into their products in the early 80s
The lens is carefully dust sealed and features solid lubrication blocks and a bronze
bearing for smooth operation. I won't go into the complex floating element zoom assembly,
suffice it to say that it is one most intricately machined components I've ever seen.
The internal focusing mechanism is fairly simple though, again, machined from solid metal.
Front Group Set Screw3439.jpg
Front Group Set Screw3439.jpg
Front Element Group 3440.jpg
Front Element Group 3440.jpg
Ground Spring 3436.jpg
Ground Spring 3436.jpg
Aperture Actuator Rod 3434.jpg
Aperture Actuator Rod 3434.jpg
Focus Scale Ring Screw 3433.jpg
Focus Scale Ring Screw 3433.jpg
Focus Ring Tape 3432.jpg
Focus Ring Tape 3432.jpg
Macro Switch Assembly 3447.jpg
Macro Switch Assembly 3447.jpg
Clean Zoom Rubber Oxidization 3443.jpg
Clean Zoom Rubber Oxidization 3443.jpg
Oxidized Rubber Before 3441.jpg
Oxidized Rubber Before 3441.jpg
Oxidized Rubber After 3446.jpg
Oxidized Rubber After 3446.jpg
Solid Lubricant 3431.jpg
Solid Lubricant 3431.jpg
Zoom Ring Lock Screws 3429.jpg
Zoom Ring Lock Screws 3429.jpg
Zoom Bearing Ring Tabs 3426.jpg
Zoom Bearing Ring Tabs 3426.jpg
Zoom Bearing Ring 3422.jpg
Zoom Bearing Ring 3422.jpg
Bent Zoom Bearing Ring Tab 3419.jpg
Bent Zoom Bearing Ring Tab 3419.jpg
Straighten Bearing Ring Tab 3421.jpg
Straighten Bearing Ring Tab 3421.jpg
Prospect Park Tower 6085.jpg
Prospect Park Tower 6085.jpg
Prospect Park Tower 6089.jpg
Prospect Park Tower 6089.jpg
Prospect Park Tower 6092.jpg
Prospect Park Tower 6092.jpg
Maxxum 28-135 f/4 Front Tube Excessive Play Repair
gallery: Maxxum 28-135 f/4 Front Tube Excessive Play Repair
28-135-4-4.5 5.jpg
28-135-4-4.5 5.jpg
28-135-4-4.5 7.jpg
28-135-4-4.5 7.jpg
28-135-4-4.5 9.jpg
28-135-4-4.5 9.jpg
28-135-4-4.5 11.jpg
28-135-4-4.5 11.jpg
Macro Switch 2464.jpg
Macro Switch 2464.jpg
28-135-4-4.5 17.jpg
28-135-4-4.5 17.jpg
28-135-4-4.5 17.jpg
28-135-4-4.5 17.jpg
28-135-4-4.5 18.jpg
28-135-4-4.5 18.jpg