Adapting the IS system from their line of EF lenses, the Canon 10x32 IS Image Stabilized Binocular employs a lens-shift system uses a combination of a vibration gyro-mechanism and microprocessors that detect and counter the appearance of hand-shake by moving the internal lens assembly to make the image appear steady. Two IS modes allow the performance to be tailored to the situation: Normal IS is ideal for moving or multiple subjects, while Powered IS improves the stabilization when observing a single stationary subject. An intuitive two-button user interface makes choosing the mode simple and easy. The IS runs on two included AA batteries, and when not using the image stabilization, the optic will operate as a conventional pair of binoculars.