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How to use my light meter?


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#1 filmguy

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Posted 07 February 2006 - 12:22 AM

I just purchased the sekonic L-398 M. It's kind of old school. But I have a question. I'm using an aaton XTR. Does the shutter angle affect my use of the light meter? I dial in the ISO film speed. And I thought I was supposed to reference that number on the cine scale with the 24 fps in order to find my aperture. Is this correct? Should I be reading it differently. I think the shutter angle on the camera is 180.
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#2 Jamie Metzger

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Posted 07 February 2006 - 01:30 AM

Your shutter angle definately effects your exposure.

Look for your manual online.
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#3 Robert Hughes

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Posted 07 February 2006 - 11:10 AM

The Sekonic L-398 has a reading for cine 24fps cameras running about 180 degrees shutter opening. Adjust for your shutter angle and camera speed accordingly. Also, check the reading accuracy of your lightmeter against a known good one; my older L-398 was a full stop off. Have you shot a film test yet?
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