Vwd61-0842 Waterproof Binocular

We are offering waterproof binocular.
Models spec. 8x4210x42
01 power 8x 10x
02 obj.lens dia. mm �42mmed obj lens
03 type of prism type material bak4
04 prism coating yes no phase
05 number of lens pieces & groups 8pieces6groups
06 lens coating fbmc
07 focus system cent.
08 focusing lens int.
09 exit pupil diameter �5.2 �4.27
10 exit pupil dist. 17.2mm 15.2mm
11 field of view
angle 8.12° 6.5°
12 ft1,000yds 426ft 340ft
13 m1,000m 142m 113m
14 min. Focal length 2m 2.5m
15 relative brightness 27.04 18.23
16 twilight index 18.3 20.4
17 resolution 4"
18 diopter system right eyepiece
19 diopter comp. ±4
20 interpupillary dist. 56mm~74mm
21
22 weather proof yes
23 water proof 1.5m3 min
24 nitrogen filled yes
25 eyecups system twist-up
26 pouch yes
27 strap yes
28 cleaning cloth yes
29 silica gel yes
30 unit diamension 170x127x54mm
31 unit weight gm oz. 860g 840g.