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13 Little Mundells, Welwyn Garden City, Hertfordshire, AL7 1EW
NEW PRODUCT INFORMATION
APO 300-800mm F5.6 EX DG HSM
From 300mm telephoto to 800mm ultra-telephoto this new lens provides a
constant fast maximum aperture and is optimized for digital SLR cameras.
New multi layer coating minimizes flare and ghost.
Two Extraordinary Low Dispersion (ELD) glass elements produce excellent
image quality.
The Hyper Sonic Motor (HSM) provides quiet, high-speed and precise
auto-focusing and full time manual focus override.
Accepts both 1.4X and 2X APO EX Tele-Converters (produces an
ultra-telephoto zoom lens of 1600mm!)
Sigma Corporation is pleased to announce the launch of the new APO 300-800mm F5.6
EX DG HSM lens.
This digitally optimized lens covers the ultra-telephoto range up to 800mm and has a fast
maximum aperture. Its new lens coating reduces flare and ghost, which is a common
problem with digital cameras. It incorporates two ELD (Extraordinary Low Dispersion)
glass elements for effective compensation of chromatic aberrations and also ensure
sharp, quality images.
Since focusing and zooming do not change its overall length, this lens offers ease of
handling and operation. The HSM ensures a quiet, high-speed AF function as well as
full-time manual focusing capability for Sigma, Canon, and Nikon mount lenses. A 46mm
filter can be inserted near the rear of the lens, and a circular polarizing filter can be used
in situ. When this lens is used with the 1.4x EX or 2x EX Apo Tele Converters (optional), it
becomes a 420-1120mmF8 MF lens or a 600-1600mm F11 MF lens respectively.