the schnider site says something like 82mm flange distance. why would this lens need to be closer than 70mm?
Im missing something.
the schnider site says something like 82mm flange distance. why would this lens need to be closer than 70mm?
Im missing something.
The "wayback machine" storage of the Grandview website is quite interesting.
http://web.archive.org/web/200404141.../sbreview.html
Seems the camera could be had with 65mm, 75mm and 90mm cones. Just because the seller on ebay "said" it came with a 75mm cone, are you FOR SURE that is what you got? Does the cone actually have some engraved stamping on it or something to give you a positive identification that it is for 75mm lens? One thing I am getting from reading the old website, and Roger Hicks review of the camera, was that it was designed really for the less expensive lenses (if that makes a difference) such as the f8 lenses, not the f5.6 lenses. Don't know if it makes any difference. Unless the flange distance is different between the f8 and f5.6 lenses.
Ah, but your cone may not actually deliver you 70mm. Did you actually measure the distance from the hole where the shutter mounts to the ground glass?Originally Posted by dazedgonebye
You may actually have the 90mm cone, which would put your lens too far out, just as you describe.
yes I did. Thats where I got the 70mm number.
Well, I don't think there is any thing you can do to get your existing fine lens to work.
I will say that I've got a 90mm Angulon, and a 90mm Super-Angulon, and they both focus infinity at different distances from the ground glass.
Ok, from the top.
With the helical set to infinity, I get a flange distance of 70-78mm.
The lens will not focus until I get it closer than 70mm.
Shouldn't I conclude that something is wrong with the lens? Surely a 75mm lens, would have a flange distance of more than 70mm? This one seems to need something closer to 65mm.
Impossible to say unless one has another identical lens to test. Maybe someone who has the Schnieder Super-Angulon 75mm f5.6 can measure the flange distance on theirs and report back. You did say you could get it to focus, just not at 70mm distance, so I'm thinking the lens is OK.
Additional information.
I contacted the seller to see if he had any history with this lens. He's telling me that it's possible that he mixed the rear element with one of two other lenses when the shutter was getting a CLA.
He's sending the other elements so I can try to match things up.
I'm thinking that could explain things. Let's hope.
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