Designed to satisfy the discriminating desires of sports and life photographers, the EF 200-400mm f/4L IS USM Extender one.4X could be a superior super photograph optical lens with AN optically matched inherent one.4x extender for optimum skillfulness. With a straightforward flick of a switch, the zoom vary is quickly exaggerated to 280-560mm (f/5.6). This capability is very helpful in applications wherever it's out of the question to vary lenses quickly, whereas additionally protective delicate instrumentation like a digital SLR camera's image device in environments with mud and high wetness. The EF 200-400mm f/4L IS USM Extender one.4X incorporates one fluorspar and 4 UD lens parts, which offer glorious correction of optical aberration throughout the whole zoom vary for skilled quality pictures with high resolution, distinction and color fidelity, whereas a 9-blade circular aperture helps deliver stunning, soft backgrounds. It utilizes inner focusing, ring USM, a high-speed central processing unit and optimized AF algorithms for quick and correct autofocusing. And, with Power Focus mode, focus shifts square measure quiet and swish, that is important for filmmaking. Image stabilization is effective up to four shutter speed steps, with 3 image stabilization modes (standard, panning, and through exposure only) providing glorious results for a large vary of subjects. Optimized lens placement and coatings deliver outstanding color balance, whereas serving to to reduce ghosting and flare. The lens is extremely immune to mud and water, facultative shooting even in harsh conditions. A element coating on front and rear lens surfaces repels mud particles and makes the lens easier to scrub.