What I noticed early in my use of the camera was the extent to which the Sony, probably just due to the lighter body, is subject to producing un-sharp images if one is not very careful to hold the camera very steady. My frame of reference is the Leica M9, where, as a practical matter, I could be much more casual (and careless) about such things. The light weight of the camera is clearly a double edged sword.
Yup. I use faster minimum shutter speeds with the A7r than with any SLR or rangefinder I've owned. 2x focal length at least for handheld stuff, 3x fl with longer lenses. High res sensor, lightweight body, clunky shutter (though some of the
clunk may be post-exposure)…it adds up.
I've had my M8.2s for six months now. Don't think I've discarded a single photo from them due to shake. Of course the 10mp sensor is more forgiving than the Sony's, but I take multiple shots of the same scene/subject when I can. The "keeper" is always the one with the best framing or light or facial expression. Shake-induced blurring just doesn't play a part.
-Dave-