Lucian Posted April 16, 2014 Share Posted April 16, 2014 Hello, I recently picked up a very rare fujinon 20mm f.085 lens and am trying to find out more about it. It is large like a 35mm format lens. I own a cmount 25mm f0.85 fujinon that I love and I am hoping this has similar optical quality. I'm Also trying to work out how to mount it to the digital bolex cmount (the lens has a rear thread of 49mm), I've had success mounting m42 lenses with an adapter, my current plan is to use the c-mount to m42 (42mm) adapter and step up to 49mm but the step ring will take a long time to arrive, putting me outside the return window, thus why i'm trying to suss out the quality and mountability of the lens in the mean time. Any info appreciated, thanks! Measurements as follows: Image Diameter: approx. 20mm Rear flange distance: 13mm (from the rear flat barrel surface to the image plane). The rear thread extends out 6mm, so the distance from the rear of the thread to the image plane is 7mm. Filter Thread: 52mm Mounting thread: 49mm x 0.75mm pitch Weight: 1 lb. 15 oz. (0.9kg) Quote Link to comment Share on other sites More sharing options...
Bioskop.Inc Posted April 16, 2014 Share Posted April 16, 2014 I'd go here & ask if i were you: http://forum.mflenses.com/ JohnBarlow 1 Quote Link to comment Share on other sites More sharing options...
Lucian Posted April 16, 2014 Author Share Posted April 16, 2014 I'd go here & ask if i were you: http://forum.mflenses.com/ Thanks man, I will try that! Quote Link to comment Share on other sites More sharing options...
Julian Posted April 16, 2014 Share Posted April 16, 2014 Let us know the outcome! Quote Link to comment Share on other sites More sharing options...
Lucian Posted April 16, 2014 Author Share Posted April 16, 2014 Let us know the outcome! Will do, hopefully it's usable. The cmount 25mm 0.85 is a really great lens, reasonable wide open, sharp at 1.4 and makes a great pair to the iscorama with only a couple of shortcomings: 1) physically too small so the rear of iscorama sometimes spins when focusing. 2) a little to long focal length for 16mm sensor, around 20mm would be the sweet spot. If this one is similar in quality it would be perfect :) Julian 1 Quote Link to comment Share on other sites More sharing options...
Julian Posted April 16, 2014 Share Posted April 16, 2014 I'd love to see some shots (wide open) with the Iscorama on the Bolex! Quote Link to comment Share on other sites More sharing options...
JohnBarlow Posted April 16, 2014 Share Posted April 16, 2014 I'd go here & ask if i were you: http://forum.mflenses.com/ Agree, Attila, Klaus and the gang will know Quote Link to comment Share on other sites More sharing options...
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