Alpen's top quality 80mm spotting scope comes standard with a 20x-60x zoom lens in a 45 degree eye piece design. You can also use Alpen's 22x long eye relief (#810) or 30x wide angle (#815) fixed power lenses which are interchangeable with the zoom lens. Fully multi-coated precision ground and polished BAK4 optics deliver a bright crisp image. The center adjustment collar allows the scope to be turned to any direction when mounted onto a tripod for easy viewing in any position. Also includes an extendable sun shade and is fully waterproof and fogproof. Field of view is 96 feet to 54 feet; eye relief is 17mm. Length is 18" and weighs 56 ounces.