Sigma outs upgrade to popular 12-24mm f/4-5.6

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Sigma has announced this morning an upgrade to the well-regarded 12-24mm f/4-5.6 ultra-wide angle zoom. The original was designed for film but this model has been brought up to date for full-frame digital cameras. In addition to four FLD elements which are said to be equal to fluorite in performance, the new lens is said to have improved peripheral brightness or reduced vignetting - always an issue with extreme wide-angle zooms. The price and availability have yet to be announced.


Press release
The Sigma Corporation is pleased to announce the new Sigma 12-24mm F4.5-5.6 DG HSM II.
One SLD and four FLD glass elements compensate for color aberration and provide excellent image quality throughout the zoom range. Three glass mold elements and one hybrid aspherical lens give advanced performance in a compact and lightweight construction and the Super Multi-Layer Coating reduces flare and ghosting.
This lens has superior peripheral brightness and provides sharp and high contrast images even at the maximum apertures.
Incorporation of HSM (Hyper Sonic Motor) ensures quiet and high speed autofocus while allowing full-time manual focus override. This lens has a minimum focusing distance of 28cm (11.0") throughout the entire zoom range and a maximum magnification ratio of 1:6.4. In addition, this lens features Sigma’s splash proof design for use in harsh conditions.
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