Why 'more or less stopped using ISO'?

Started Feb 19, 2014 | Questions thread
xpatUSA
Senior MemberPosts: 5,018Gear list
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Re: Why 'more or less stopped using ISO'?
In reply to D Cox, Feb 20, 2014

D Cox wrote:

xpatUSA wrote:

With my camera, if shoot a scene at ISO 100 and 1/100 sec and then at ISO 400 and 1/100 sec, the raw data is the same in each image. I guess that makes it a) an 'ISO-less' camera and b) a waste of time messing with the ISO 'knob'.

Is it completely identical, including the metadata ? I would expect the file header to include some indication for the raw converter telling it by how much to multiply the numbers.

To paraphrase Bill Clinton "it all depends what the meaning of 'it' is"

Myself, I said 'raw data', not meta-data and not 'the file'.

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Cheers,
Ted

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