Canon ef 400mm f28l is ii usm is an ultra high performance l series super telephoto lens featuring a 4 stop image stabilizer with 3 modes it delivers outstanding image quality in a robust and lightweight design ideal for sports and wildlife photography and has improved handheld and lowlight shooting thanks to 4 stop image swc coating minimises ghosting and flare for enhanced image quality it also has a 3 mode image stabilizer suited to sports and action photography and a 9 blade circular