midwifetoad
Posts: 3136
Joined: Mar. 2008
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I looked back at my original post and see nothing controversial or argumentative.
All I said was for folks using autoexposure cameras, the difference between nominal and actual f-stop is inconsequential.
If I select 4.5 (aperture priority), the camera may select a shutter speed somewhere between 1/250 and 1/500. Actually it records the shutter speed in decimal seconds.
If I use shutter priority, the camera uses continuously variable aperture settings.
So It doesn't care what the actual transmission factor might be.
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... a poster child for irresponsible and deceitful misrepresentation of design theory on the Internet.
http://tinyurl.com/9axtwbe....9axtwbe
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