8x40 10x50

Key Features ：
● BAK4 Porro Prism Optical
● Slip-Resistant Rubber Armoring
● Tripod Adaptable with Optional Adapter
● Fully Multi-Coated Optics
● Twist-Up  Rubber Eyecups
● Impact resistant aluminum alloy mirror body
● Wide 60° Apparent Angle of View
● Center Focus Knob
● Nitrogen-Filled Water and Fogproof
Overview ：
The 10x50mm HD renders views with minimal chromatic aberration, exceptional color fidelity, edge-to-edge sharpness, and optimal light transmission through the use of high definition glass, an index-matched lens configuration, Fully multi-coated lens coatings, phase-correcting roof prisms.  The housing is argon filled and sealed with O-rings to ensure reliable and durable protection against dust, debris, fog, and water.  They are rubber armored for non-slip and durable protection, and is equipped with a large focusing knob that is easy to use even while wearing gloves.  Twist-down eyecups accommodate users who wear glasses.  For hands-free use or the steadiest view.
Optical Performance:
● High 10x magnification to make detailed observations of distant subjects
● Large 50mm objectives boost light-gathering capabilities for better views in difficult and low-light conditions
● BAK4 Porro prism light path produces a rich depth of field to more easily discern the relative distances between two objects in the field of view
● Antireflection fully coated optics ensure images are bright and clear with improved contrast and accurate color representation
● Ultrawide 60° apparent angle of view helps to minimize the distracting hand shake common with high-power optics while providing a spacious panoramic view
● 315' field of view at 1000 yards (10x50mm)
Use and Handling ：
● Large slip-resistant center focusing wheel is easy to manipulate, even when wearing gloves
● Right-eye dioptric correction enables users to compensate for individual optical prescription ● Fold-down rubber eyecups for comfortable use with or without eyewear
● Tripod mountable with optional adapters enables hands-free use with limited vibration or arm fatigue ● 5.0mm exit pupil will completely cover pupils as they open in low light (10x50mm)
● 18.0mm eye relief (10x50mm)
Construction Details ：
● Impact resistant aluminum alloy mirror body
● Protective rubber armoring with dimpled palm-pad accents provide a secure and slip-resistant grip ● Includes carrying case and neck strap
● Large textured center focus wheel
● Weight:  33.33 ounces
Specifications Performance