Olympus CK30 - CK40 Controls Identification

CK30/CK40
10
CK40
Filter holder
Aperture iris diaphragm lever
Diopter adjustment ring
Interpupillary distance
scale
Brightness adjustment control
Main switch
Coarse tension adjustment ring
Coarse adjustment knob
Fine adjustment knob
Slider centering lever
storage holes
Phase contrast slider
Knurled sliding grips
Standard stage plate