Featuring achromatic lenses with the renowned T* multi-coating for maximum light transmission, the ZEISS Mono 10x25 T* Monocular delivers a bright, high-contrast image. Its 10x magnification is the most powerful of the Mono series of monoculars; ZEISS calls the 10x25 a "miniature telescope" for its ability to display far-off details with such clarity. The close focus distance is less than 15 feet, eye relief is a comfortable 15mm, and the apparent angle of view is a respectable 51°.