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[OM] Re: Digital Dilemma

Subject: [OM] Re: Digital Dilemma
From: Wayne S <om4t@xxxxxxxx>
Date: Fri, 17 Sep 2004 21:40:16 -0400
At 06:16 PM 9/17/2004, Moose wrote:
>>With the E-1 and OM lenses, exposure varies with aperture, 
>>the more you stop it down the more under-exposed it becomes.
>
>Is that true? I can't imagine it is so. It is certainly not the way OM 
>lenses work on Can*n DSLR bodies. 

I'm to lazy to post the series, but with every OM lens I have
used on the E-1 it does. I was testing bokeh back when Walt
started us down that path. So I tested the 50/2, 50/1.2, 90/2
100/2 on the E-1 at every F-stop.

It is also possible that the E-1 is interpreting the scene in 
EPS mode to be darker and "interprets" that it should be
exposed less. I should try center weighted average metering
to confirm.

Metering with the aperture wide open rather than stopped down
should not be that far off in predicting the stopped down case,
maybe 1/3 stop. Certainly not the amount I saw with OM's on
the E-1.

Wayne 


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