10-30x21 15-50x21

Key Features ：
● BK7 Roof Prism Design
● Fully Multi-Coated Optics
● Large Textured Center Focus Knob
● Slip-Resistant Rubber Armoring
● Fold-Down Rubber Eyecup
● Tripod Mountable
Overview ：
The 15-50x21  Zoom Monocular is equipped with optical elements that deliver big performance. Its BK7 prism glass and fully multi-coated lenses minimize reflection and maximize light transmission for a bright, sharp image. At 15x, the  Zoom yields a respectable field of view;zoom in to 50x to see distant details clearly. You can mount this monocular on a tripod to eliminate image shake at higher magnification, and for comfort during long-duration observations. 
Optical Performance:
● 15-50x magnification
● 21mm objective lens
● Roof prism design produces a compact form factor that is easy to hold without sacrificing performance

● Fully coated optics help to improve light transmission and boost contrast and color rendition
● Green lens tint enhances color recognition and helps to reduce glare
● 105-48 ft field of view at 1000 yards
Use and Handling ：
● Can be mounted on tripod for shake-free long-term observation
● Close focus distance: 10'
● Prominent zoom ring knob
● Twist-Up rubber eyecups for easy use with or without eyewear
● 11 - 8 mm eye relief
● 1.4-0.4 mm exit pupil
Construction Details ：
● Compact design is pocketable and offers easy one-handed use.
● Soft pouch included for convenience
● Diamond-textured palm pads provide additional slip-resistance while adding an elegant and sleek look

● Lightweight design, weighs just over 75g
● Includes case and neck strap
Performance :