buckenmeyer wrote:..... it's so different than dslr.......
what I had already written above +g*
you should always try to shoot at the native ISO, with any necessary adjustments
if you can't do it any other way.
Therefore, you should also read the chapter on dual ISO in the manual.
means, from 1250 ISO you have less noise than with 1000 ISO and
in low light, use 1250 ISO (native 3200) and up.
and with enough light use 400 ISO (if necessary with ND filter).