A question addressed to the A7-specialists:
As far as I could find out, the A mode on the A7 (ILCE-7 Vers. 1.10) works as follows:
If ISO is not on auto, shutter speed is automatic in the full range,
if ISO is on auto, shutter speed is automatic while ISO tries to minimize to 100.
As soon as automatic shutter speed would rise above 1/60 s, ISO automatic starts to increase.
As a result, automatic shutter speed does not adjust to values above 1/60 s as long as a maximum ISO of 25600 is not yet reached - then it starts to increase further up to 30 s.
Is there any way to change these somehow arbitrary limits of 1/60 and 25600 to more specific and useful values ?