Shuntu ed 10x42 roof binoculars waterproof telescope MG Alloy ED with cpl filter
Magnification:        10x
Objective Lens Diameter:        42 mm
Eyepiece Diameter:        21 mm
Minimum Focus Distance:        3 m
Lens Elements/Groups:        8
Phase Coating:        Phase Coating
Lens Coating:        Super Multi-Coated (SMC)
Field of View (Apparent):        6.2°
Field of View (at 1000m):        108 m/1000m
Field of View (at 1000yds):        326 ft/1000yds
True Field of View:        56.9 °
Tripod Mount:        1/4-20 UNC
Eyecups:        Twist-Up
Diopter Adjustment:        +3 diopters
Interpupillary Distance (IPD):        56-74 mm
Eye Relief:        15.1 mm
Resolution:        5 arcseconds
Twilight Factor:        20.5
Light Transmittance:        94%
Focusing System:        Center Focus
Exit Pupil Diameter:        4.3 mm
Prism Material:        BAK4
Operating Temperature:        -20°C to 55°C
Waterproof Rating:        IPX7
Prism System:        Schmidt-Pechan
Dimensions:        160x135x63 mm
Weight:        777 g
Form Factor:        Standa