1.magnifier lens night vision 2.porro BK7 prism 3.centre focus,easy to carry and operate 4.hand held,used for traveling

Magnification:	10X
Objective diameter(mm)	50
Front lens diameter	62
Prism (BAK4 / BK7)	BK7
Prism Type (Roof / Porro)	Porro
Eyepiece diameter(mm)	17
Exit pupil diameter(mm)	6.5
Relative Brightness Index (RBI)	42
Field of view(ft /1000 yds)	7
Eye relief(mm)	16
Close distance(M)	5
Waterproof (Y/N)	NO
Fogproof(Y/N)	NO
	Yes
Twilight number	22
Diopter adjustment:	-4D~+4D
Net weight(g)	745
Dimensions of product	195X62X177
Accessories	Yes
Cleaning Cloth	Yes
Shoulder Strap	Yes
Silicon	Yes
Instruction Sheet	Yes
Burglary Alarm Tag	No
Giftbox Packing	Yes
Aluminium Case Packing	No
Master Carton	Yes
Inner Carton	No

telescope  microscope  binoculars  magnifying glass  night vision  binocular  total stationmagnifier lens  night vision

SW10X50 porro binoculars