Sticky slow gear in Mamiya-Sekor 1:2.8 f=80mm (Seikosha-S shutter)
37:40
Sticky slow gear in Mamiya-Sekor 65mm 1:3.5 (for Mamiya TLR C330, C33)
25:26
Mamiya C220 Shutter Timing Fixed - 80mm f/2.8
50:47
Sticky shutter (1. sec. problem) in Minolta Autocord 1:3.5 f=75mm
1:26:30
Kowa 85mm
29:11
Mamiya Press Super 23 - Боевая Машина Журналиста
20:29
Repair Stuck Film advance gear in Mamiya C3 Motion Lapse Film
22:28
How to clean the focus screen and the mirror in Rolleicord Xenar 1:3.5 75mm
2:27:15