Tokina SZX SUPER TELE 400mm F8 Reflex MF is a 400mm super tele lens that adopts catadioptric type optical design with a constant F8 aperture. The lens offers compact alternative to standard tele photo lenses as more and more photographers are looking for easy-to-carry gear. 400mm F8 Reflex MF is designed keeping in mind active travel photographers seeking for outdoor landscape, wild nature or birds by providing compact and lightweight lens to be rediscovered in the new era of also compact but high-tech mirrorless cameras.Tokina SZX SUPER TELE 400mm F8 Reflex MF is suitable for travel photography since the lens is compact and lightweight, and yet will help you to capture far objects that cannot be reached by standard zoom lenses. This lens can serve you best in different photographic genres, like landscape, people, street snap, macro, wild nature and even sports!Optical PerformanceLong 400mm focal length of Tokina SZX SUPER TELE 400mm F8 Reflex MF while being such a compact and lightweight is realized thanks to catadioptric optical design.Mirror lenses are tele photo lenses that incorporate a combination of 3 lenses silvered on the outside of the glass to reflect light back and forth between the ends of the lens. This structure folds the light cutting the tube length in half. In this way the construction makes the physical size of the lens around a third of the size of a conventional lens and allows a lightweight body, because the mirrors are