8x21

Key Features ：
● BK7 Reverse-Porro Prisms
● Slip-Resistant Rubber Armoring
● Multi-Coated Optics
● Wide 56° Apparent Angle of View
● Twist-Up Rubber Eyecups
● Center Focus Knob
Overview ：
As powerful as they are simple to use, the 8x21mm Porro Binoculars sport reverse-Porro prisms to give them a more compact form factor that is easy to stow in a pack, purse, or pocket and comfortable to hold.   Fully coated optics help capture as much light as possible while boosting contrast, and the wide viewing angle ensures the entire scene unfolding before you is comfortably in your field of view. For more detailed observations, the binoculars have a short close-focus distance so small visitors to feeders like hummingbirds or butterflies can be clearly seen from as little as five-feet away.8x21mm includes a carrying case and strap, and with a weight of just 8.7 ounces they won't cause neck fatigue or add too much bulk to your load.
Optical Performance:
● 8x magnification
● 21mm objective lenses
● Compact reverse-Porro prism design
● Multi-Coated  optics ensure images are bright and clear with improved contrast and accurate color representation

● Wide 56° apparent angle of view
● 366 FT field of view at 1000 yards
Use and Handling ：
● Large center focusing wheel is easy to manipulate, even when wearing gloves
● Right-eye dioptric correction enables users to compensate for individual optical prescription
● Twist-Up  rubber eyecups for comfortable use with or without eyewear
● Close 5' short-focus distance
● 2.6mm exit pupil
● 10.0mm eye relief
Construction Details
● 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: 135 g
Specifications Performance