Combining professional-grade performance with a lightweight, compact design, this versatile long-telephoto zoom is an excellent choice for both dedicated field photography and casual shooting. Its focal range excels at capturing fast-moving subjects such as sports, wildlife, and motorsport, yet its sub-1.2kg weight also makes it perfect for telephoto landscapes and pet portraits. With a maximum magnification ratio of 1:4.1, it even handles macro-style close-ups with ease. The 100-400mm delivers exceptional sharpness across the entire zoom range, aided by one FLD and four SLD elements that effectively suppress optical aberrations.