Hello!
IS bins with only a few degrees of stabilization reduce your human micro tremor / micro shaking handheld. IS with more degrees can be also or better used e.g. on boats with larger movements. Or in strong wind. Some IS bins therefore have switches for 2 levels of stabilization, low level stabilization only probably saves energy, batteries hold longer or/and can be technically better designed for the corresponding observation situation - with situation special (low level) shaking.
Best regards, CS.
Edit:
Shaking on boats or in wind has lower frequencies but greater amplitudes then micro tremor of the human hands only. This interference must stabilization control handle different to micro movements of hands only. 2 levels are good or simpler for the design of IS-algorithm, for feedback regulation (control loop) of very different disturbance signals (shaking).
Edited by cnuser, 23 November 2020 - 10:42 AM.