This Visionking 400×80 refractor scope is a compact and universal telescope with bright image quality and high magnification power. It is suitable for astronomical observations and for terrestrial use as a powerful spotting scope, with 80 mm Objective Lens Diameter and Fully multi-coated,so it has very clear images even in low lighting condition. Visionking 80400 gather 30% light more than 70350,and 77% more light than 60350,and 156% more light than 50350,And with camera adapter,it can connect Normal digital camera(not Single lens camera) to take photo.