The best price for Canon 10x20 IS is $781.15. This is presently the cheapest offer found from comparing prices from 2 shops in Australia.
General
Exit pupil
2 mm
Prism/Mirror binoculars
Porro
Colours
Black
Focus
Focus system
Center focus
Image quality
Lens diametre
The larger the diameter, the more light is captured. A diameter of 30 mm suffices during day-light conditions, but larger lenses are required during low-light conditions.