Re: BTFR question

[Patrick Magee <pmagee@xxxxxxxxxxxx>]

Does it meter with the shutter open? That is the only time there would be
a "problem".

On Thu, 27 Apr 2000, ADavidhazy wrote:

> While it may pass through the filter twice it does not matter anyway because
> you have to determine proper speed index to set meter to in any case. 
> 
> Andrew  o o  0 0 o . o  Davidhazy, Imaging and Photo Tech
>          \/\/\/\/\/\/          http://www.rit.edu/~andpph
> __________|        |_____________________________________
> 
> > I have a question regarding the between the film rails placement of the
> > IR filter. Don't TTL metering systems measure the light reflecting off
> > the film plane (OTF)? If so, wouldn't the meter reading be different
> > with the filter placed between the rails as opposed to in front of the
> > lens because the light would then pass through the filter twice? Or, am
> > I wrong, and the camera's meter does not read light reflected off the
> > film plane?
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