Spend less time finding your target and more time looking at it with the Alpine Astronomical Baader 1x30 Sky-Surfer III Red-Dot Finder. It was designed with an unmagnified field of view and a spacious 30mm aperture that is treated with anti-reflection coatings to provide a clear view through it. Using this type of sight is the easiest way to locate objects by projecting a single red dot in the center of the field of view. Running on a single included CR2032 coin battery, the Sky-Surfer III has a rheostat to control the reticle brightness to ensure the dot is visible without affecting night-adjusted vision. It attaches quickly to most telescopes, spotting scopes, and binoculars, with the various included mounting adapters. The finder can also be directly connected to any Picatinny/Weaver accessory rail without requiring any adapter.