The name says it all! The BRESSER Special-Zoomar 12?36x70 Binoculars offer fascinating sharp images. The individual eyepieces are carefully tuned to each other, making the magnification continuously adjustable by means of zoom lever. Thanks to the FMC coated BaK-4 glass material objects at great distance can still be seen as clear images. The handy and ergonomic rubber armoring provides for a stable grip. The standard tripod thread and tripod adapter provided, make it simple to attach these binoculars to any photo-tripod. end tab Features Zoom binoculars with XXL objective lens diameter for astronomical use Magnification range: 12?36x / objective lens diameter: 70mm Fully multi coated / tripod adapter included Dimensions: 280x210x83mm / weight: 1290 g Includes: binoculars, case, tripod adapter, lens cloth, lens caps end tab Specs Item Number 16?63670 Magnification 12?36 Field of View 56 m/1000 m Lens Coatings fully multi-coated Focuser Type center Dimensions 280x210x83 mm Brightness 34.03 Objective Lens Diameter 70 mm Apparent Field 3.2? Close Focus 10 m Prism BaK-4 Eyecup Type Rubber eyecups, foldable Housing Metal/Plastic Weight 1290 g end tab Warranty Limited Warranty is one year, which converts to the Explore STAR Transferable Extended Life of the Product Warranty when product is registered within 60 days of purchase. Click Here to register. CA Residents: Prop 65 WARNING(S)