Hey ivan,
thanks for elaborating.
The thing is that I would like to know WHY it is supposed to be so bad. Is it because the center of the lens shifts?
That should not be too much of a deal in RC due to the individual distortion of each image, right?
Also, is this not mainly important for real metric cameras? Any consumer grade camera, and the A7 and all “normal” reflex cameras has issues (in terms of internal stability) that knock the top of accuracy right off. So it’s more of an intellectual difference, if I read your thoughts correctly.
There have been issues with the A7ii series, but in many cases the IBIS could be ruled out. Many other users are totally pleased with them.