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#1 micko

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Posted 21 January 2006 - 06:37 AM

hi to all,
i,m starting s16mm in the water.
i,m hunting down c-mount 8mm or 10mm lenses for wide stuff.
does anyone have any heads up into "affordable used lenses besides ebay?
cheers and thanks
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#2 seth christian

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Posted 21 January 2006 - 11:32 PM

this is what I did to save a little cash....

I see you've got the C-mount already, now get yourself a C-mount > FD lens mount
(the FD lenses that go on Canon still cameras)

then I use about 10 different FD lenses on my bolex film camera and its
cheaper, and as long as the lenses are good FD lenses like Canon, its fantastic.
Just try to stick with Canon though, because some lenses don't want to cooperate
due to the color prism issue coming thru some film cameras. but with Canon....
you're safe!

Also remember, 8mm wide lens for your film camera will be more like an 18mm
lens on the canon, or, normal perspective for the film camera is about 25mm,
and the canon lens would be about 40-50mm.

Dont know if you wanted to go this route, but its just one avenue to get a variety
of lens choices to swap out all day.

Good luck man
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#3 Robert Hughes

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Posted 22 January 2006 - 04:07 AM

thinkmonkeymedia, I don't quite understand your recommendations on lens sizes. Are you saying that he would get a normal perspective on his 16mm camera using your Canon 40-50mm lens on an FD adapter? Because that's not true. Using a camera adapter is OK (I've got a c mount to Nikon F adapter myself), but as far as the 16mm film frame is concerned, a 25mm lens is "normal" perspective no matter what mount it's on.

micko, are you shooting with a Bolex RX camera? If so you need RX lenses for any focal length less than 50mm. Otherwise I'd recommend looking for decent C mount lenses for the 15-25mm range; Cooke Ivotal, Angenieux, Switar, etc. Most the eBay lenses I've bought have been fine, though I shoot Regular 16; your mileage may vary.

Edited by Robert Hughes, 22 January 2006 - 04:11 AM.

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#4 Ian Marks

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Posted 23 January 2006 - 03:05 PM

"are you shooting with a Bolex RX camera? If so you need RX lenses for any focal length less than 50mm."

Not necessarily true. Although "RX" marked Kern lenses are ideal, there are non-RX lenses that will work just fine on a reflex Bolex. It may sound sacrilegious, but a little testing will determine whether a particular lens is okay. For those lenses that aren't "supposed" to work, the problem can often be eliminated by shooting stopped down.
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#5 Leo Anthony Vale

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Posted 23 January 2006 - 04:32 PM

"are you shooting with a Bolex RX camera? If so you need RX lenses for any focal length less than 50mm."

Not necessarily true. Although "RX" marked Kern lenses are ideal, there are non-RX lenses that will work just fine on a reflex Bolex. It may sound sacrilegious, but a little testing will determine whether a particular lens is okay. For those lenses that aren't "supposed" to work, the problem can often be eliminated by shooting stopped down.


---This article, based on data from Paillard, explains that stopping a lens down to f/3.2 and smaller will eliminate the RX prism problems:

http://www.city-net....olex/truth.html

---LV
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#6 Robert Hughes

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Posted 23 January 2006 - 05:42 PM

Thanks for that link. I learned something new today. It helps explain why that cheap 12mm video lens l've used on my Bolex RX looked better than it "should" have.
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