In article ,
RichA wrote:

On Thursday, 25 May 2017 18:03:37 UTC-4, Alfred Molon wrote:
The Olympus E-M1 II has the lowest noise at ISO 64 (at the cost of a bit
less dynamic range) but the highest dynamic range at ISO 200. So what
would be the native or base ISO of the sensor?
How would that be defined?
--
Alfred Molon

Olympus E-series DSLRs and micro 4/3 forum at
http://tech.groups.yahoo.com/group/MyOlympus/
http://myolympus.org/ photo sharing site

Nobody knows. Finding a place where it is pinned-down to a specific sensor
is difficult. Likely you'd have better luck finding out in a professional
area where CCD and CMOS-based cameras actually have to meet certain specs,
unlike the consumer realm.

As we all know: The sensors of quarterframe/mFT cameras are silly small.
Thus the photon wells are small too! At the lower ISO the wells fills up
more and thus the noise is reduced but the room for play at the top of
the well gets thiner and then again less dynamic range is found in the
files.

Again: Bigger is better! :-))
--
teleportation kills