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Sigma launch 300mm f/2.8 APO EX DG HSM lens - Lens optimised for digital SLR cameras with fast maximum aperture f/2.8 telephoto.
The new multi layer lens coating reduces flare and ghosting, which is a common problem with digital SLR cameras. The overall length of the lens does not change during focusing, ensuring convenient handling and ease of use.
The HSM (Hyper Sonic Motor) models provide fast, silent AF function as well as full- time manual focus override. A drop-in 46mm filter holder in the rear part of the lens barrel can be rotated to facilitate the use of filters, including a polarising filter, in situ.
Simply adding an APO teleconverter (optional extra), means that this lens can be used as a 420mm F4 AF ultra-telephoto lens with a 1.4X EX teleconverter, or a 600mm F5.6 AF ultra-telephoto lens with a 2X teleconverter.
Focal Length 300mm
Minimum Aperture f/32
Lens Construction 11 Elements in 9 Groups
Angle of View 8.2
Number of Diaphragm Blades 9pcs
Minimum Focusing Distance 250cm(98.4)
Maximum Magnification 1:7.5
Filter Size 46mm (drop-in type)
Lens Hood Bayonet Hood
Dimensions Diameter 119mm (4.6) x Length 214.5mm (8.4)
Fittings Sigma, Canon, Nikon-D, Konica/Minolta and Pentax
The appearance and specifications are subject to change without notice.