DESC: The E-520's in-body Mechanical Image Stabilization has three modes for increased versatility. The IS-1 mode adjusts the sensor on both the X and Y-axes to compensate for movement by the photographer, so images stay sharp even at slow shutter speeds. To capture the action of athletes or animals, in-body Mechanical Image Stabilization offers two specialized modes: IS-2 and IS-3. IS-2 is ideal for capturing a racecar flying down the track -- by panning and holding the camera horizontally you can dramatically portray the car’s high speed.