hikvision ds-2df8242ix-aelw(t5) 2mp 42× network ir speed dome adopts 1/1.8" progressive scan cmos chip. with the 42× optical zoom lens, the camera offers more details over expansive areas. this series of cameras can be widely used for wide ranges of high-definition, such as the rivers, forests, roads, railways, airports, ports, squares, parks, scenic spots, stations and large venues, etc.