Zeiss Photomicroscope Optical Path Selector
Three settings:
White (all the way in) - Full image in binocular head/eyepieces
Red (1st stop out) - 50/50 eyepieces/lower prism to the back
Slides smoothly and all prisms are in good condition.
All original screws accounted for and are included
Three settings:
White (all the way in) - Full image in binocular head/eyepieces
Red (1st stop out) - 50/50 eyepieces/lower prism to the back
Black (2nd stop out) - 50/50 eyepieces/upper and lower prism to the back
Fully pulled out - Full image to the trinocular port to the top
Slides smoothly and all prisms are in good condition.
All original screws accounted for and are included