Specification
Type	Prism Binoculars
Magnification	18x
Objective lens effective diameter	50mm
Filter Size	58mm
Real Field of View	3.7°
Apparent Field of View (ISO 14132-1: 2002 Standard)	60.3°
Field of View at 1000m	65m
Objective lens construction	4 elements in 3 groups (with 1 UD element)
Eyepiece lens construction	7 elements in 5 groups
Doublet Field Flattener	Yes
Exit Pupil diameter	2.8mm
Eye relief	15mm
Prism Type	Porro II Prism
Lens coating	Multi-layer coating with all optical system (Super Spectra Coating)
Eye width adjustment	58mm - 76mm
Focusing method	Manual focusing by turning the focusing knob
Closest focusing distance	6m
Dioptric correction method	Adjustable with the dioptric correction ring
Dioptric correction range	+/-3.0dpt
Image Stabilizer	Vari-Angle Prism
Correction angle	+/- 0.7°
Power source	AA Battery x2
Battery Life (Continuous Use)		25°C	-10°C
	Lithium	About 8 hrs	About 3.5 hrs
	Alkaline	About 2.5 hrs	About 10 mins
Operating environment	-10°C to 45°C, 90% humidity
Water Resistance	JIS Level 4
Tripod Socket	Standard screw (1/4-20 UNC)
Dimensions (W x H x D)	152 x 193 x 81mm
Weight	1,180g (excluding batteries)
All data is based on Canon's standard testing methods. Subject to change without notice

Language

18 x 50 IS All Weather