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Nice shot and nice-looking cat!From the first set of shots..... cropped of course.....
From what I've read a bevel needs to be run around theI was looking at buying a 12.5 Cosmicar 1.4; the price seems reasonable. Could someone please explain what machining is necessary to mount this lens on a G1?
I assume a C-mount adapter is needed as well.
Many thanks
Santo
In case anyone is looking for one, Surplusshed.com is still offering that lens for only $25.00. The tricky part is that you have to carefully lathe or file the edge, taking care not to cut into the screw holes that hold the mount on the lens.I was looking at buying a 12.5 Cosmicar 1.4; the price seems reasonable. Could someone please explain what machining is necessary to mount this lens on a G1?
I assume a C-mount adapter is needed as well.
Many thanks
Santo
Thanks Rich.In case anyone is looking for one, Surplusshed.com is still offering that lens for only $25.00. The tricky part is that you have to carefully lathe or file the edge, taking care not to cut into the screw holes that hold the mount on the lens.
Alas, about 2" is the max focus distance with the lens at infinity with no machining.Thanks Rich.
Can anyone tell me what the maximum distance this lens will focus to without machining? I would be using it mostly indoors so infinity focus isn't a big issue. And at a FL of 12.5 mm, the hyperfocal distance is about 4.3 feet at F8, so sharpness at infinity might be OK for non-critical use.
Actually, for $25 there's not a lot of money at risk even if it doesn't work out.
regards
Santo
I've been wondering that myself but have no idea. I haveGot an idea of what the 'effective' focal length would be after cropping to remove the vignetting?