Description
Developed to deliver beautiful background and foreground defocusing. A Nano AR Coating minimizes flare, eliminates opacity and tightens blacks. Three ED glass elements compensate for color aberration. If you primarily photograph athletes and wild animals, you will find the performance of this lens ideal, thanks to impressive specifications such as a bright f/4 aperture and the ultra-telephoto 500mm focal length. This lens, with 11 elements in 10 groups, was specially developed to deliver beautiful background and foreground defocusing. Its smooth circular aperture, formed by 9 aperture blades, contributes to rounder, more beautiful bokeh. A Nano AR Coating and velvet lining also minimize flare, eliminate opacity and tighten blacks. Furthermore, three ED (Extra-low Dispersion) glass elements compensate for color aberration to realize sharper image quality.
SSM (Super Sonic wave Motor)
A built-in lens motor for faster automatic focusing with high torque at low speed, quick start/stop response, and quiet, smooth operation.
Nano AR Coating
Sony’s Nano AR Coating with nano-precision structure contributes to high-quality images with reduced ghosting and flare. This proprietary Sony coating technology features aligned microscopic asperities that reduce the effects of the reflective interfacial boundary on the surface of the lens, thus dramatically reducing the amount of undesirable reflections entering the lens.