Why 'more or less stopped using ISO'?

Started 8 months ago | Questions thread
crames
Regular MemberPosts: 192
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Re: Maybe this will help.
In reply to bobn2, 8 months ago

bobn2 wrote:

If 'brightness' is dependent on 'absolute luminance of the stimulus' then there is no such thing as 'ISO'.

Ok, I'll bite. How so?

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