There are ISO standards, but they aren't particularly useful because variable contrast systems don't use them, and they really only reflect the results from measurements using a reflection densitometer, not the visual appearance of prints.as far as i understand it paper grades are defined by an iso standard as objective measurements
There are ISO standards, but they aren't particularly useful because variable contrast systems don't use them, and they really only reflect the results from measurements using a reflection densitometer, not the visual appearance of prints.
But the light sources don't.https://www.ilfordphoto.com/amfile/file/download/file/1952/product/1872/
Ilford use Iso standards for their multigrade
But the light sources don't.
I believe someone posted that there are no leaflets in the new boxes. I don't know if that might be temporary.(i havent see the new box leaflet yet)
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