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04-14-2018, 01:19 PM - 1 Like   #1
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Detailed explaination of Exposure

I just looked at the video from this web site that goes into a technical discussion of Understanding Exposure. Some, if not most, of the photo geeks on the site will really enjoy it.

A deep dive on the science behind exposure and metering

Please note: I have followed the Phoblographer for a few years now. They really don't care for Pentax all that much and the site's owner is casts himself as a film geek. Some of the articles, like this one, are interesting and some, in my opinion, are a little trivial.

Anyway, enjoy this one.

04-14-2018, 09:11 PM   #2
GUB
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I sincerely hope not too many students have been exposed to this guy!! They would probably end up not being able to tie their bootlaces. Far too unnecessarily complicated and out right wrong. It was right in the film days but in digital Iso is not a measure of sensitivity and the exposure triangle is dead. Only 2 inputs create the signal - shutter and aperture. Iso merely amplifies what you have achieved. Starve your sensor of light via shutter/aperture and your image degrades - full stop.
Yes EVs are a good unit to understand and they demonstrate how simple exposure really can be - superbright sunny day on beach or snow - EV16 --- Moonlight landscapes minus3 EV. So in the real world about 19 stops you are likely to encounter -- you can damn near guess the EV.
04-15-2018, 02:07 PM   #3
PDL
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Original Poster
Perhaps you should check out the other videos by "this guy".


You might learn something.
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