Objective Lens Diameter:22
Eyepiece diameter:10
Magnification:8
Field of View:15
Type:Binoculars
Water Resistance Level:IPX4
Prism Description:BAK4
Material:Metal
Lens Coating Description:FMC
Focus Type:CENTRAL
resolution ratio:10000
Instrument magnification:8
distance of exit pupil:10
field of view:15
Model:40X22
The diameter of the pupil:22
Material:Metal + Rubber