Canon 12x36 Image Stabilization III Binoculars Compact, highly portable binoculars that are ideal for birdwatching, hunting, and more Superb Image Stabilization (IS) using optics technology, equivalent to what is used for Canon EF lenses High magnification ratio: 12x 36mm/1.42 in. objective lens effective diameter helps provide clear and bright, high resolution images Porro II Prisms help provide outstanding image resolution and minimize the loss of light Doublet field-flattener for sharp, virtually distortion-free images from edge-to-edge Improved power efficiency and battery consumption Long eye relief (14.5mm/0.57 in.) helps ensure comfort, especially for those with glasses Low-reflective exterior design for birdwatching and other uses Environmentally-friendly lead-free glass