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C-Mount Lens on Scarlet?

Sascha Rossier

Sascha Rossier

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Hej Guys
I have a beautiful Canon Lens 17-102mm f2 with a c-mount layin around. I would like to
plug it on the Scarlet to shoot 3K or 2K ... but of course, there is the problem of the flange
focal distance:

flange focal distance of my EOS-Mount: 44mm
flange focal distance of the C-Mount: 17.526mm

Is there some Optics-Guru around here to figure out how i could increase the flange focal distance
of a c-mount to 44mm? Maybe with some relay lens?

I guess some Optics-Manufacturer could make a lot of money if they produced a little adapter
Lens, that you could screw on the C-Mount to fit on an Scarlet EOS/PL Mount ... cause all these
cheap but great c-mount glasses flyin around on the web could come back and produce some great
images in 2K and 3K-Mode ... innit?

CanonCM.JPG
 
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My thought would be that it may be possible but the complexity and softening/artifacts from the relay optics would make the endeavor not so worthwhile. Is that old c-mount lens really worth the trouble? I wasn't that impressed with the tests of that lens that I've seen on gh1/gh2's. I would suggest you consider selling it off since it probably has pretty good value in the gh1/gh2 market and maybe picking up a 16mm zoom with a longer FFD?

I have an angenieux 9.5-57 f1.6 zoom I got on ebay for $300 some time ago that I'm itching to try on my Scarlet, but its Arri Bayonet so it should be easy to adapt.
 
This lens or a variation of it was sold with an old Panasonic VHS camera and portapack recorder system. I used one on a Bolex H16RX5 film camera for stringer television news work way back when before film for news bit the dust out here which was around 1983. For image quality, it was "adequate" for TV news. It was not the sharpest lens. It was made for the then commonly used 2/3" tube sensors. The rear body diameter of this lens may not fit inside the PL adaptor mentioned earlier in this thread. With a 35mm optical adaptor and its nature of magnifying any deficiencies in the lens mounted to it, I think you will be disappointed for the effort and expense involved.
 
Robert Hart said:
This lens or a variation of it was sold with an old Panasonic VHS camera and portapack recorder system. I used one on a Bolex H16RX5 film camera for stringer television news work way back when before film for news bit the dust out here which was around 1983. For image quality, it was "adequate" for TV news. It was not the sharpest lens. It was made for the then commonly used 2/3" tube sensors. The rear body diameter of this lens may not fit inside the PL adaptor mentioned earlier in this thread. With a 35mm optical adaptor and its nature of magnifying any deficiencies in the lens mounted to it, I think you will be disappointed for the effort and expense involved.
Click to expand...

Well that brings back memories - I used to shoot with the same camera (Bolex H16RX5) for all the MOS news stringer work back in the mid-70's. The 16mm Kodak VNF stock was color corrected for the transfer (was it 7240??). Just drop the film cans into a "network labeled" grapefruit bag, get it to any bus station in the country and it was on it's way to be souped, transferred and aired. Also had a few CP-16's for anything that required sync audio. The CP-16 film stock had a mag stripe so you could record audio straight to the camera....
Nat Geo still spec'ed standard stock and 1/4" tape (used my ARRI BL and Nagra III that Stu Cody modified with a crystal) Whew, long time ago...

To the lens in question - I still have a box of C-mount lenses kicking around - may even have one of those somewhere. As I recall, even if you could get past the other restrictions that Jacek mentioned (and those are legitimate), these particular lenses could not produce an image circle that would cover 2/3 without showing severe aberrations, never mind the Scarlet sensor. Unlike Robert, I never tried it on a 16mm camera - my experience with it was on an early Hitachi video camera in a corporate environment (I think those were 1/2" tubes). In all honesty, the lens struggled with achieving reasonable results in standard definition.

I agree with Robert (not worth any effort or expense to go down this path) and Jacek (not technologically feasible). Sorry.
 
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