Mamiya RZ67 Professional IID - Lens Components; Lens Part Identification

Lens
Alignment Mark
(PSO)
Aperture Ring
(P20)
De th-of -Field Preview Lever
(P49)
Time Lock Button
(P45)
Time Exposure Lever
(P20,45)
Mirror Lock-up Cable
Release
Socket
Cocking Position Marks
(P18)
Shutter Cocking Pins
(P18,54)
Bayonet Ring
(P9, 17, 19,20)
Depth-of-Field Scale
(P49)
Lens Distance Scale
(P49)
Shutter Lock Pin
(P54)
Shutter Cocking Pins
(P18, 54)