Thread: Fill flash
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Old 07-11-2008, 03:24 PM   #9 (permalink)
MattKing
 
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Join Date: Apr 2005
Location: Delta, British Columbia, Canada
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Quote:
Originally Posted by Mike Wilde View Post
Say ambient light is metered to give f/5.6, (at focal plane shutter synch speed - I wont go into in lens leaf shutters here) and I want -1 stop fill - so I set the flash to expect the camera lens to be set to f/8, and make the exposure - bingo - -1 stop fill lfash (don't let the sun shine stright into the falsh eye when back lighting withe the ambient lighting though) .
Mike:

Don't you mean that you set the flash to expect the camera lens to be set to f/4, rather than f/8?

If the flash thinks you are using f/8, won't it put out twice the light needed for f/5.6, not half the light needed?

Matt
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