Top features: - Waterproof, fogproof and nitrogen purged for use in all weather conditions - 10 x magnification so you can get closer to the action - Phase and dielectric coated prisms means high resolution and contrast views - Extra Low Dispersion lens glass for razor sharp images Waterproof, fogproof and nitrogen purged The Praktica Marquis BAMFX1042G 10 x 42 mm Binoculars are designed for all types of weather conditions as its waterproof and nitrogen purged to give you protection from the fog. 10 x magnification With the 10 x zoom and an objective lens measuring at 26 mm, the Praktica Marquis BAMFX1042G Binoculars let you get a good look at your subject whether it may be landscape or scene. Phase and dielectric coated Praktica's Marquis Binoculars have phase and dielectric coated prisms, this means you can see images in a bright, crisp detail with high resolution and contrast. The large 4.2 mm exit pupil allows you to see brighter images in lower light.Extra low dispersionThe extra low dispersion in the Praktica Marquis Bioculars lens glass means you can get razor sharp images that eliminate chromatic aberration so you don't lose focus on your image.