Why 'more or less stopped using ISO'?

Started 10 months ago | Questions thread
D Cox
Senior MemberPosts: 8,651
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Re: Why 'more or less stopped using ISO'?
In reply to xpatUSA, 10 months ago

xpatUSA wrote:

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'.

I would take the data in a "raw" file to include everything in the file, such as anything in the header that tells the raw converter to multiply all the numbers by some constant.

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