Exposure basics, lesson two point one (& ISO)

Started Mar 19, 2013 | Discussions thread
Jack Hogan
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Re: Exposure basics, lesson two point one (& ISO)
In reply to Martin.au, Mar 19, 2013

Mjankor wrote: Hey Jack, is the SOS measurement from the ISO standard an arbitrary value?

Yes, but don't take my word for it, check it out yourself.  Meter off of a gray card in a few different modes, and see if middle gray comes out to 118 in sRGB. Does it ever?

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