The opticron hr 80 ed45 straight spotting scope offers vastly improved and sharper images over previous models particularly at higher magnifications and in difficult lighting conditions this is as a result of the extra low dispersion ed glass elements that have been built to withstand extreme conditions the opticron hr 80 ed45 is a scope that is equally at home in the tropics or the polar regions with its fully waterproofed and hermetically sealed rubber armoured lightweight magnesium body