Leupold BX-4 Pro Guide HD 10x50 are high magnification roof-mounted binoculars , distinguished by stunningly vivid and detailed images, as well as a lightweight, fully waterproof constructionTwilight Max HD technology and multi-coated lenses make the Leupold BX-4 Pro Guide HD 10×50 a great way to observe in the harshest light conditions.It features high image resolution and sharpness, a compact and waterproof design, and exceptional performance in low light.Key features of the BX-4 Pro Guide HD series:Twilight Light Max HD Surveillance System :Unmatched brightness in the harshest conditions,Enhanced twilight efficiency,Enhances image brightness in low light (approx. 30 minutes),Eliminates 90% of stray reflections,Premium lenses provide sharp sharpness,Increases image depth and contrast.Armour coated - the rubberised protective coating on the housing provides a firm and comfortable grip in all conditions.Cap -4 prisms - provide a perfectly circular exit pupil and sharp image across the entire field of view.HD quality - calcium fluoride lenses provide amazing resolution and clarity at all magnifications.Enlarged focus ring - provides comfort and the ability to use the binoculars with gloves on.Diopter adjustment - allows you to precisely adjust the focus of the binoculars, compensating for differences in vision between the right and left eye.Ergonomic design with open bridge - modern styling that combines functionality, lightness and comfort.Lenses with full multi-coating - for maximum brightness, excellent image resolution and faithful colour reproduction.Phase-correction coating - dielectric coating of primers reduces light interference from diffusion in the roof system. Thanks to this, the image is contrasty and sharp over the entire field of view (from edge to edge).Roof system - the telescope is lighter, more compact (compared to the porro system) and easier to carry in this system.Light and practicalThe Leupold BX-4 Pro Guide HD 10 × 50 is a modern telescope, weighing 793 g, resistant to weather conditions and dirt.Thanks to the patented technology of the Leupold branded nitrogen filling, the binocular is fully protected against water and internal evaporation,The tubes are covered with a rubber armour that protects against scratches and prevents the binocular from slipping out of your hand. The slim design of the scope makes it easy to use and fits perfectly in the hand.The open bridge and roof optics make the scope easy and comfortable to use.The scope has a closed protective cover and a padded shoulder strap.Prisms in roof configurationThe Leupold BX-4 Pro Guide HD 10 × 50 prism scope in roof configuration. The advantage of this system is, above all, the smaller size and weight of the binoculars, which makes them comfortable and easy to carry. The 50 × aperture and 10x magnification of the binoculars allow "hand-held use" with very good visibility of details. The high magnification is mainly used for observing aircraft (while flying), hard-to-reach birds and distant objects.The retractable eyecups and the large distance from the exit pupil allow comfortable observation by people wearing corrective lenses. The binoculars have a diopter adjustment on the right eye lens to eliminate differences in vision between the right and left eye.Bright imageThe use of anti-reflective coatings on the lenses and Bak-4 glass makes the image bright, with exceptional resolution and natural colour reproduction.The Twilight Light Management System not only increases image brightness in low light conditions, but also eliminates image blur and stray reflections.The Leupold BX-4 Pro Guide HD 10 × 50 provides bright images and high performance in low light conditions, making it suitable for dusk and dawn viewing.The 5 mm exit pupil is a perfect fit for those who are past their 35th birthday.Accessories neededThe binoculars come with useful accessories: cordura cover, comfortable shoulder strap, polymer lens protectors.SPECIFICATIONSFigure sheetsGas refill NitrogenAngular field of view [°] 5Dioptric adjustment [±] 0Linear field of view at 1000 m [m] 3Min. Focal length [m] 3Distance from the eye [mm] 18.8Magnification [×] 10Prism arrangement roofDistance from pupil [mm] 5Additional informationMovable eyecups YesApplication (intended use)hunting,wildlife observation in nature and hunting,outdoor,tourismDimensionsWeight [g] 793Objective diameter [mm] 50Total height [mm] 168