Sigma sd Quattro £699/$799

Sigma takes its three-layer sensor technology to the next level in a new mirrorless camera

Rod Lawton

CSC www.sigma-imaging-uk.com SPECIFICATIONS Sensor Foveon X3 direct image CMOS sensor (23.4 x 15.5mm); 29.5MP on three layers, max image size 39.3MP Lens mount Sigma SA Memory SD/SDHC/SDXC Viewfinder Electronic viewfinder, 2,360,000 dots Max video resolution N/A ISO range 100-6,400 Autofocus points 9 Max burst rate 3.7fps Screen 3-inch TFT, 1,620,000 dots Shutter speeds 1/4,000 sec to 30 sec, Bulb Weight 625g Dimensions 147 x 95 x 91mm Power supply BP-61 lithium-ion battery (supplied) The sd Quattro’s fine detail rendition is exceptional. Sadly, its high-ISO performance is startling in a very different way SIGMA’S Quattro sensor mimics traditional film, recording colour using different layers of silicon rather than with the mosaic or red, green and blue photosites used by regular sensors. The top layer records luminance and blue data at 19.6MP…

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Camera Shopper Special (Digital) - 1 Issue, Vol. 18

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