WANTED: Scan of a 90mm f6.8 aperture scale for Copal #0.

[Lachlan 717]

Hoping to get a scanned aperture scale for a Sinaron (Grandagon) 90mm f6.8 in Copal #0.

Thanks in advance for any assistance!

[Andrew]

would that be the same as a Caltar II-N 90/6.8 MC ???

[Lachlan 717]

would that be the same as a Caltar II-N 90/6.8 MC ???

I think so, Andrew. AFAIK, same basic lens.

[Andrew]

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.

[BradS]

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.

[BradS]

here's a link to Jerold's photo...
http://www.largeformatphotography.info/forum/attachment.php?attachmentid=109198&d=1390675162

[Lachlan 717]

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 717]

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.

PM sent. Thanks!

[Andrew]

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

[Andrew]

better at 1600 dpi !!!

[Lachlan 717]

Thanks again, Andrew!!