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Bolex Exposure Compensation

bolex student exposure light meter

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#1 willgething

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Posted 18 October 2014 - 09:29 AM

Shooting a student project on the Bolex H-16 camera, I understand that 25% of light is lost by going into the viewfinder. That means that on a normal light meter it has to be compensated for right? I will be using 250D stock, would setting the ASA on the light meter to 160 compensate for this?  and then could I use the light meter as normal?

 

Also is there any common problems or tips and tricks that might be useful for me to know before the shoot?

 

Thanks

Will


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#2 Jean-Louis Seguin

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Posted 18 October 2014 - 09:55 AM

Either set ISO to 160 and use shutter speed 1/50 or set ISO to 250 and use shutter speed 1/80. Both ways are good and will give the proper exposure (for 24fps, that is).

Jean-Louis
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#3 willgething

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Posted 18 October 2014 - 11:19 AM

Thank you!


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#4 Chris Millar

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Posted 18 October 2014 - 05:57 PM

It's not quite 25% - measurements on 2 models indicated more like 16~18%  (I can't remember exactly but it was an even number in the teens at least)

 

But why trust me, I'm just another guy on the internet ;)  ... maybe I measured incorrectly twice  ...aaaaand anyway, 25% seems to work just fine.


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