Objective Lens Diameter: 22
Eyepiece diameter: 10
Magnification: 8
Field of View: 15
Origin: CN(Origin)
Type: Binoculars
Water Resistance Level: IPX4
Prism Description: BAK4
Model Number: WYJ0011
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