The BRESSER SPEZIAL ASTRO SF 15x70 binoculars are ideal for astronomy and landscape observation Thanks to the multi-coated Bak-4 glass, the extra large objective lens, 70 mm lens diameter and corrected eyepieces, as well as the arrangement of 5 lenses in 3 groups, this telescope is bright and sharp provides images in the entire field of view. The large, 15-fold magnification is not only suitable for observing astronomical objects, but also for viewing distant terrestrial objects. Thanks to the large reduction of scattered light, the telescope provides the best possible image and excellent clarity. With the unique eyepiece focus solution, you can get a sharp image for all astronomical distances, without "focus creep" spoiling the image. The collapsible rubber eyecups give glasses wearers the opportunity to make the most of this wide field of vision. The large-diameter eyepiece lenses ensure extremely comfortable vision, allowing longer observations without eye fatigue. The telescope is waterproof and filled with ARGON gas to avoid internal fogging. The ergonomic rubber cover provides a secure grip and is also protected against impacts, making it robust and ideal for transport. With the tripod thread in the extended central shaft, the SPEZIAL ASTRO can be mounted on any photo tripod. For tripod use, an optional tripod adapter is required (part number 1916500 or 4914925). It is strongly recommended to use a tripod for a stable image, as the large, 15x magnification is difficult to hold in your hand. Features: telescope for astronomical and landscape observation, extremely high light-gathering capacity, extraordinary magnification for distant objects, multi-coated optics, water-resistant, filled with ARGON gas, anti-fog magnification: 15x - front lens diameter: 70mm eyepiece - focus and collapsible rubber eyecup corrected eyepieces for sharp images in the entire field of vision ergonomic rubber cover - solid protection against impacts dimensions: 290x215x85mm / weight: 1900g tripod thread