Detailed Notes On Orion Skyscanner 100mm Review The particular "optimal vary" to your telescope is utilizing a 8mm up to a 16mm eyepiece which provides you concerning a 2mm and 4mm exit pupil or 25 and 50x magnification. Also This is a large amount slower at f8 compared to the super-rapid f4 products - a lot simpler to collimate, won't require a co