Specifications:

 

Magnification	10
Caliber(mm)	42
Prism System	Roof
Prism Glass	BaK4
Focus System	Center
Field Of View(ft/1000yds)	315
Close Focus Distance(m)	2
Exit Pupil(mm)	4.2
Eye Relief(mm)	16
Eyecup Type	Twist-up
Fog proof	Yes
Water proof	Yes
Nitrogen Filled	Yes
Coating	Full Multi-Coated

Features:

Large 22mm ocular lens for super view
Durable and Protective, Rubber-armored
Lightweight, ergonomic design,comfortable to hold
Fully multicoated glass lenses deliver the ultimate brightness and resolution
BaK-4 prisms offer the clear, bright and crisp images 
Long eye relief for eyeglasses wearers
Smooth Central Focus Knob for quick viewing
Nitrogen filled and O-ring sealed for Waterproof/Fogproof
Super close focusing