Why is brightness important and how do I determine how bright a
Date: Wednesday 27 April, 2005
FAQ Summary:
FAQ Content:
The brighter the image when looking through a binocular or spotting scope the better chance you will have of seeing a sharp and detailed image of objects viewed.
Brightness if affected by:
How big the "exit pupil" is of the binocular. (this is an easy thing to determine and is explained below).
The types and number of "coatings" applied to the optical system.
