There are now people using hand-held gimbals like this one or that one with their DSLRs or mirrorless cameras. How does the effect of such a gimbal compare to image stabilization? Can they be used for long exposures without a tripod?
Do the benefits of a gimbal combine with in-body or optical image stabilization? Meaning, if one camera and lens can get a sharp exposure at a certain shutter-speed, could it get a sharp image at an even slower shutter-speed if a stabilized body or lens (or both for Dual IS systems) is mounted onto such a hand-held gimbal?
There does not seem to be a stabilization metric for those gimbals but how much can they typically stabilize? Would it be measured in stops as with camera and lens stabilization?