How to calculate magnification (power) of a telescope or spotting scope? Identify the focal length of the scope. This is often marked on the body of the scope or it should be given in the user manual. For...
A spotting scope is normally designed for terrestrial observations and is used in situations involving magnifications beyond the range of typical binoculars. It needs to be small and light enough so that it...
I've looked through many bins in my time and i thought i'd share my findings, Not many Helios binoculars for sale on eBay, but if your after a decent set of bins these are pound for pound the best out there....