Originally Posted by
r.e.
Fujinon W f/5.6 180mm, lens description inside rather than outside the lens rim:
Lens: single coated, made before 1979
Shutter, depending on copy: Copal S, Seiko, Copal 1
Angle of coverage: 80°
Image circle @ f/22: 305mm (just covers 8x10, no movements)
Filter thread: 58mm
As I understand it, Fujinon W f/5.6 180mm lenses made in 1979 or later have the lens description outside the rim, are multi-coated and have a smaller image circle that doesn't cover 8x10.
The foregoing information comes from various internet sources and should be confirmed by anyone interested in this lens.
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