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General Photography
Low Light & Night
Help with the Looney 11 rule
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<blockquote data-quote="WayneF" data-source="post: 294251" data-attributes="member: 12496"><p>No, the exposure does not depend on focal length (nor on camera location). If you zoom out, the exposure does not change. Maybe if the scene contents change, it could meter different, but not just due to focal length. Try zooming on something like a blank wall (so the scene contents don't vary). The whole idea of fstop number is that f/4 is f/4 exposure for any focal length.</p></blockquote><p></p>
[QUOTE="WayneF, post: 294251, member: 12496"] No, the exposure does not depend on focal length (nor on camera location). If you zoom out, the exposure does not change. Maybe if the scene contents change, it could meter different, but not just due to focal length. Try zooming on something like a blank wall (so the scene contents don't vary). The whole idea of fstop number is that f/4 is f/4 exposure for any focal length. [/QUOTE]
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General Photography
Low Light & Night
Help with the Looney 11 rule
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