The ggs pro grade removable glass protector for canon 5d mark iii features an explosion proof film to ensure maximum resistance to impact damage to the rear lcd the pro grade removable glass protector is a third generation screen protector from ggs and is manufactured from 5mm ultra thin optical glass with at least 90 light transmission to ensure maximum clarity the cover protects the camera lcd by preventing the surface from being rubbed scraped and bumped it also offers protection from sw