Canon 18x50 IS Image Stabilized Binoculars - Manual (Page 10)

ENG-9
Major Specifications
15 × 50 IS ALL WEATHER 18 × 50 IS ALL WEATHER
Type Porro prism binoculars
Magnification 15 Ч 18 Ч
Objective lens effective diameter 50 mm
Real field of view 4.5˚ 3.7˚
Apparent field of view 61.0˚ 60.3°
(Calculated based on ISO 14132-1:2002)
Field of view at 1000 m / yds 79 m / 237 ft 65 m / 195 ft
Exit pupil diameter 3.3 mm 2.8 mm
Eye relief 15 mm
Focusing distance range Approx. 6 m - infinity
Image Stabilizer system Optical correction with vari-angle prism
Correction angle ±0.7˚
Battery check Lamp
Operating environment Temperature: –10˚C to 45˚C / 14˚F to 113˚F
Humidity: 90%
Dimensions (W × H × D) 152 Ч 193 Ч 81 mm / 6 Ч 7.6 Ч 3.2 inch
Weight Approx. 1200 g / 42.3 oz (Excluding batteries)
* Specifications subject to change without notice.
Optional Accessories
Antifog Eyepiece AE-B1
This prevents fogging on the eyepiece in cold climates.