The claim from "Review" Sites: "The Olympus version has a mechanical spring which “loses its elasticity with age”. Sony’s solution uses coils and magnets which also have the advantage that it uses less energy and is also very quite than the Olympus version (note that Olympus E-M1 stabilization is quite noisy)." Here is the Olympus technology explained from Olympus themselves: :smile: http://www.olympus-global.com/en/technology/technology/omd/vol02/ Floating image sensor Turning on the OM-D camera energizes a coil and magnet arrangement that causes the image sensor to float in magnetic suspension. This allows the image sensor to move freely, so it can be rotated or moved vertically or horizontally depending on the movement of the camera. It can also be used to compensate for the gentle vibration that occurs when the user is walking, such as when recording video.