This sample circa '71.
Filter size: 52mm
Close focus distance: 6 feet, 1.8 meters
Aperture range: f/4.5 - f/32
Aperture blades: 7
Depth of field scale for f/4, f/8, f/11, f/16, and IR focusing index.
Design: 15 elements in 10 groups
More information:
Ken Rockwell
MIR
Comments: This is my first one-touch zoom - it's great for casual walking around, but I'm not sure I could shoot sport with it, and the zoom is just loose enough that it might not work well on a tripod. Having a constant aperture and the 52mm filter thread is nice, and it isn't any larger than the 200mm f/4:
The Nippon Kogaku marked samples are pretty rare, there were about 2200 made according to Photosynthesis. The Nikon and C versions look pretty much the same.
The K and AI versions with round rear opening have the same optics but square nubbins on the focusing ring. The later version has a rectangular rear shade and a different optical design (12 elements in 9 groups).
Sample Photos:
More photos from this lens
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