Pentax 75mm F/2.8 FA 645 Lens Tear Down & Repair - Autofocus Gear repair
25:22
Pentax 645N Tear down - Outer Housing Top/Bottom & Side Removal.
15:49
Zeiss Makro Sonnar 100mm F2.8 Contax N AF Tear Down & Repair - Replacing Auto Focus Gear In NEW Lens
16:45
Lens repair: How to service lens helicoids
27:27
Pentax-A SMC 50mm f2 Disassembly
13:21
Carl Zeiss Jena Biotar 75 reborn? TTArtisan 75mm f/1.5 (Full Frame)
7:41
Lens Repair - SMC Pentax-M 80-200mm f/4.5 Zoom
5:24
Fuji GFX 50S II with the Pentax-A 645 75mm f/2.8 Lens
29:12