Alan Browne wrote:
wrote:
Can you find the "natural" (neutral gain) ISO of the sensor?
Define it, and I will find it.
Simply put, that region where the sensor needs only unity gain (analog
and digital).
It's not that simple; the sensor needs unity gain to do what, exactly?
The camera makers don't tell us exactly how they are measuring ISO
sensitivity, and there are (at least) two different acceptable ways to
do it; one using highlights and one using shadows. You'd have to decide
what method to use to call something "ISO sensitivity", and it may not
be the same one the manufacturer used.
--
Jeremy |