Specifications: Magnification 10x Angle of view 6o/105 m Objective lens diameter 40 mm Exit Pupil Diammeter 4 mm Exit Pupil Distance 10.5 mm Overall dimensions 172x125x53 mm Weight 0.62 kg Description and Technical information: BKFC 10x40 M 'Foton' High Quality Traveler/Hunter Binoculars. The 'Foton' series of binoculars combine the famous Zeiss roof-prism magnification system with an all-new upgraded image reversing system. The 'Foton' series is a beautiful product. These binoculars are hand set and hand polished by a real optician. The collimation of these binoculars is amazing, take us at our word that you will not find this type of precise setup, exact collimation and superior performance in anything other than high-grade binoculars selling for many hundreds more. The 'Foton' series has a unique, single-axle, 2-wheel focus and dioptic compensation system. Highlight features include roof prisms with fast multi-coated optics, complete waterproofing, a handsome carrying case, modern German styling and expensive performance inexpensively. These factory inspected, manually assembled binoculars are the professional's choice! - Specially Enlightened high-density optical glass polished to perfection and a high quality pechan prism - a further development of the roof prizm - Special military multilayer coating of all lens elements and prisms of the optical system, that guarantees high brilliance, razor-sharp definition and outstanding color fidelity - Light alloy body - Super Compact design - Water resistant as per russian military standarts– needless to say, they are also dust-proof - Soft protective rubber eyepieces allow eyeglass wearers to enjoy the full field of view Made in Russia