The best price for Leica Ultravid 8x20 BR is $1,148.55. This is presently the cheapest offer found from comparing prices from 2 shops in Australia. The excellent average rating is 4.8 out of 5 from 5 reviews.
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.