The new M.Zuiko Digital ED 5.0-6.3/100-400mm IS EZ_M1040 is a powerful yet relatively compact super telephoto zoom lens weighing just 1120 grams. With a focal length range of 100-400mm, it extends into the super telephoto range, equivalent to a full-frame zoom of 200-800mm. It is compatible with both teleconverters, allowing its focal length to be doubled to 800mm or 1600mm in full-frame terms. The ZERO coating (Zuiko Extra-low Reflection Optical) reduces ghosting and flare even in challenging conditions such as backlighting. Dust, splash, and frost protection from the M.Zuiko PRO series: The effective hermetic sealing of the entire lens barrel makes the new model absolutely reliable, even in harsh environments.