diaphragm opening of 90mm f/8.0 Super Angulon at f/8

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I just picked up a used 90mm f/8.0 Super Angulon in Copal 0 (11,553,361, made in 1971, not multicoated, Copal S type shutter). It's in great shape overall, but the diaphragm impinges just slightly on the central opening of the lens at f/8. Opening up about a quarter stop past the f/8 mark removes the diaphragm from view. Is this normal, or have the markings on shutter somehow gotten rotated by a quarter of a stop?

-- Todd West (twest@agora.rdrop.com), May 28, 2002


Mine is the same. At f/8 you see the diaphragm leaves. Mine is also of about the same vintage.

-- Tony Galt (galta@uwgb.edu), May 28, 2002.

Mine is a '88 multicoated and is the same....

-- domenico (applethorpe@earthlink.net), May 28, 2002.

My 90mm f/8 SA is the same. I bought it brand new one month ago.

-- neon (davidbickerdike@yahoo.com), May 28, 2002.

Well, this seems conclusive. Thanks!

-- Todd West (twest@agora.rdrop.com), May 28, 2002.

Just to hammer it home some more - same on my 18 month old 90mm f/8.0 Super Angulon in Copal 0....


-- Bob (bobphoto@techie.com), May 28, 2002.

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