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Lenses for Bolex Bayonet mount


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#1 jacob thomas

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Posted 19 September 2006 - 08:40 PM

I've been looking at getting a bayonet mount Bolex h16 (SB/SBM/EBM/EL) and can't find much information on using "C mount" and other lenses via an adapter (arri standard, nikon, etc).

The bolex EL manual doesn't mention any of the problems that occur in using non RX lenses on RX cameras.

Were the prisms in the later Bolexes somehow corrected for non RX lenses?

Edited by Jacob Thomas, 19 September 2006 - 08:41 PM.

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#2 Sir Alvin Ekarma

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Posted 20 September 2006 - 12:06 PM

I've been looking at getting a bayonet mount Bolex h16 (SB/SBM/EBM/EL) and can't find much information on using "C mount" and other lenses via an adapter (arri standard, nikon, etc).

The bolex EL manual doesn't mention any of the problems that occur in using non RX lenses on RX cameras.

Were the prisms in the later Bolexes somehow corrected for non RX lenses?


Any c-mount lens will need to be recollimated to RX specs. Try Dieter at Procam. 35mm lenses used with a c-mount to bayonet adapter are fine, but I'm not 100% sure about Arri adatpers.
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#3 Sir Alvin Ekarma

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Posted 20 September 2006 - 02:32 PM

Correction: any c-mount lens under 50mm will need to be recollimated...
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#4 Leigh Spencer

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Posted 20 September 2006 - 03:44 PM

i use a bayonet to nikon convertor supplied by les bosher ( £85) and it allows me to use some fast nikkor lenses on my super 16 ebm. just have to take the adjusted shutter speed when metering (1/60). the results are very impressive compared to the angenieux zoom so i recommend the set up.
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#5 shutter bug

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Posted 21 September 2006 - 11:48 AM

i suggest browsing for clive tobins responses on this topic and read the bolex document in this issue. technically it needs corrected lenses for the prism. as far as i know collimation is not needed as long as the lens is set at c mount specs already.you can apparently get away with shooting with non RX lenses from F4 and up. any less and youll get colour abberations. id suggest getting what i have, a set of the latest bolex preset lenses with multicoating.pm me if you want more info on them.
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#6 Dan Salzmann

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Posted 21 September 2006 - 11:57 AM

"35mm lenses used with a c-mount to bayonet adapter are fine, but I'm not 100% sure about Arri adatpers."

Where have you seen 35mm c-mount lenses?
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#7 Sir Alvin Ekarma

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Posted 21 September 2006 - 06:17 PM

"35mm lenses used with a c-mount to bayonet adapter are fine, but I'm not 100% sure about Arri adatpers."

Where have you seen 35mm c-mount lenses?


What I meant was that a 35mm SLR lens won't have focus problems when you use a 35mm SLR c-mount adapter (Nikon, Pentax, etc) .
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