BlattWorld, Item Details: Sigma 300mm F2.8 APO EX HSM Lens

Accessories Filters Lens Cleaning Kit Sigma's APO 300mm F2.8 EX is one of three new ultra telephoto lenses. It is an ultra compact Apochromatic telephoto lens with a fast F2.8 maximum aperture, and incorporates two Extraordinary Low Dispersion

glass elements (Abbe number 90.3), to reduce chromatic aberration to a minimum. It incorporates internal focusing which enables responsive and fast auto focus speed. The AF drive for Sigma SA, Canon and Nikon S.L.R. cameras feature Sigma's ultra-quiet Hy

per Sonic Motor (H.S.M.). Sigma's dedicated APO EX Tele Converter 1.4x and 2x lenses work easily with this lens without sacrificing the AF speed of the Sigma APO 300mm F2.8 EX. A rotatable drop in filter holder is provided. The lens materials used in this

new lens are lead and arsenic free ecological glass.