The Sigma sd Quattro is the new mirrorless interchangeable lens camera from Sigma, and replaces the SD1 Merrill, which was Sigma’s Digital SLR camera. The sd Quattro features the same Sigma SA lens mount, making it compatible with all Sigma SA lenses. The sq Quattro features the same APS-C Foveon sensor as the dp Quattro series, and is available for £799/$1,198 body only, or £999/$1,498 with 30mm f/1.4 Art lens.
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