The fujinon xf100 400mmf45 56 r lm ois wr is a super telephoto zoom lens that covers a 35mm focal length equivalent of 152 609mm the high performance optical construction of 21 elements in 14 groups includes five ed lenses and one super ed lens to help reduce chromatic aberration that often occurs in telephoto lenses as a result it delivers the highest image quality in its class the lens has been designed for handheld shooting with a 50 stop image stabilisation system and weighs less than 14kg l