Best price for Tasco Essentials 10-30x50 is $238.99 inclusive of GST. This is presently the cheapest offer found from comparing prices from 3 shops in New Zealand.
General
Exit pupil
15 mm
Prism/Mirror binoculars
Prism Binoculars
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.