zoom monocular 7-21X21

Magification: 7x-21x
Objective diametre: 21mm
Eye Relief: 10mm
Exit Pupil: 2.25-0.9mm
Field of 1000m 
Field of degree: 4.5-2.3
Material of body PC GF30%
Prism Material: BK7
Eyecup Type: Overturn
Coating type: Double-coated green
FOCUSING SYSTEM 
Near Focus: 2.3
Waterproof: No
Adapt to Tripod No
Shoulders: NO
Binocular weight: 75g
BinocularDimension: 107.6mm X 3.85-3.34mm

zoom monocular 7-21X21