In appreciation of the Panasonic 45-175
Nice. I am strongly considering this lens as my first M43 zoom. If the OIS issues only present themselves at 1/160 shutter, then I shouldn't have to worry.
It's worst at this speed, but on either side 125/200 some have encountered problems at lower severity. It also depends on which camera you use and your own personal holding style. I found if I actively try not to hold the camera steady the result could be better. I find it pretty safe once down to about 1/40 or up to about 1/320.