Originally posted by Class A I don't see why the hardward-based SR would alleviate any of the issues you mentioned if they are rolling shutter induced.
I don't know if this is what we see, but here goes the common wisdom:
If a video is digitally stabilized, then this is done by aligning consecutive frames, using image information or info from gyro sensors.
However, shake not only induces consecutive frames to be shifted from one another. It does induce all artefacts which come with the shake movement too:
- jump of the image (what digital stabilization tries to remove)
- blur (can't be healed, is particularly large if using movie-like shutter speeds)
- rolling shutter distortion (can be healed if the shake movement was uniform - some stabilizers try to correct for jello, some don't)
A sensor-shift or lens-shift based stabilization (aka optical stabilization) avoids all three effects because the image does not move relative to the sensor.