Specifications:

Magnification	8x
Caliber(mm)	42
Prism System	Roof
Prism Glass	BaK4
Focus System	Center
Field Of View(ft/1000yds)	430
Close Focus Distance(m)	2
Exit Pupil(mm)	5.25
Eye Relief(mm)	15.6
Eyecup Type	Twist-up
Resolution	≤4.9〞
Fog proof	Yes
Water proof	1.5m/3min
Nitrogen Filled	Yes
Coating	Full Multi-Coated

Feature:

 ED(Extra low Dispersion) glass,camera quality optics for increased clarity
 Extra Large 24mm ocular lens for comfortable viewing
 Large 56mm objective lens for super brightness
 Durable and Protective, Rubber-armored for shockproof
 Ergonomic design,comfortable to hold
 Fully multicoated glass lenses deliver the ultimate brightness and resolution
 Long eye relief for eyeglasses wearers
 Smooth Central Focus Knob for quick viewing
 Nitrogen filled and O-ring sealed for Waterproof/Fogproof
 Flip-Down Objective Lens Covers protect lenses from dirt and scratchesDurable
 Super near focusing