Product parameters Magnification: 15 x Effective Diameter: 56 mm exit pupil diameter: 3.7 mm Twilight factor: 291,000 meters Vision: 80 actual field of m: 69 ° recent focus: 3.5 m diopter range: +4 | -4 dpt pupil ?? From: 57 - 74 mm exit pupil range of 18 mm Lens Type: HD Type Prism System: Abbe-K nig Waterproof: 400 mbar LotuTec coating: a nitrogen: the system temperature range ° C: -20 | +63 ° C height: 210 mm Width: 145 mm Weight: 1295 g Order Number: 525633 Carl Zeiss since 1846, the company founder, Mr. Carl Zeiss created the first inter-precision mechanical and optical instruments shop in Jena, Germany began, after nearly 160 years continuous development, exploration, innovation, development, Carl Zeiss optics not only the world leader in the manufacturing sector, and its optical products also enjoy a world-class reputation, as consumers trust the brand. Excellent image quality depends on the optical material. For this reason, Carl Zeiss either selection, or in the process, have to stick with the highest standards. All prisms and lenses are using the latest research and design to ensure the highest accuracy. Optical lenses, we will carry out the ingredients precise configuration and use of the Zeiss "T * composite coating", in the optical conductivity, color performance, brightness and contrast have reached the top level, thus ensuring the telescope in have access to a wealth of high-resolution images in the whole field of view. In the field of optics, many valuable discovery, we have been directly used for the design of the telescope. A very typical example is this: We will add fluoride glass for our new series telescope victory FL models. Fluoride ion lens not only make images become clearer, but also greatly improves the color reproduction of images. Each of our telescope has waterproof, dustproof functions. High temperature resistant, cold-resistant, its use can be trusted even in harsh environments. Zeiss telescope has a long life. Conquest CONQUEST HD, find the smallest detail, to experience the most shocking moment a whole new level. Extremely real and natural colors, to observe birds, insects, and the whole natural world. Enjoy the perfect ergonomic design, allowing you more comfortable viewing. Enjoy an impressive visual experience until dusk. These telescopes compact size, light weight, make your viewing experience a successful conclusion. Enjoy bird watching and observation of the natural world. Conquest CONQUEST HD binoculars are ideal for you to open up new journey equipment. CONQUEST HD 15x56 develop greater distances, 15x56 in longer ranges can also provide sharp minimum detail view. Discover the secrets of nature's smallest. Tripod adapter provides the necessary comfort to you, so you can quickly telescope mounted on a tripod.