Analog film photography and cameras

the trouble i had with medium format is unless you use a tripod and mirror-up with cable release you always seem to get movement from mirror slap, unless you use flash.
you don't notice it until you go to print big, which for work that's going to repro is important so i always shot jobs on a tripod which i preferred anyway but as a walk around camera they are a bit limiting IMHO, although with 400 film i would hand hold and use the mirror-up.
i use 35mm didital in the same way, tripod/mirror up as movement seems to be exacerbated with digital as the sensor is just a micron thick whereas film has several layers for light to bounce around in so you don't notice small amounts of movement.
hand holding at low speeds (1/60-1/125) always seems to show micro-movement at 100% it looks sharp 'enough' but compared to using a tripod it's often soft.

Get yourself an IS lens, I have found you can have a can of Stella in one hand and a FF35mm in the other and still get sharp images with an IS lens.

Unless I can hear whirring noises from my lens I am not happy.