Hoping to get a scanned aperture scale for a Sinaron (Grandagon) 90mm f6.8 in Copal #0.
Thanks in advance for any assistance!
Hoping to get a scanned aperture scale for a Sinaron (Grandagon) 90mm f6.8 in Copal #0.
Thanks in advance for any assistance!
Lachlan.
You miss 100% of the shots you never take. -- Wayne Gretzky
would that be the same as a Caltar II-N 90/6.8 MC ???
might be able to help then.... I've got a busy couple of days coming up but once the pressure's off, unless someone else jumps in first.
Lachlan,
Jerold Hartner is selling a 90mm f/6.8 Grandagon-N lens in the classifieds here. He's posted some very nice photos of the lens. One shows the aperture scale clearly...and you can see how the f-stops line up with the shutter speeds....which will get you really close. It is also not terribly difficult to measure the aperture diameter looking through the front of the lens and calculate the f-stop directly. This second approach is very accurate in my experience.
here's a link to Jerold's photo...
http://www.largeformatphotography.in...8&d=1390675162
Thanks, Brad.
I had already been in touch with him prior to getting my current lens, but he had a potential buyer. I then got in touch with him yesterday; however, the lens is already packed for sending!
I appreciate the thought, though!
Lachlan.
You miss 100% of the shots you never take. -- Wayne Gretzky
seems like such a little image.... there was user error and I only scanned at 150dpi
but you still have the screw holes for reference
they're from a recent Copal 0 with a black selector ring
better at 1600 dpi !!!
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