Sigma SD14

Development

Sigma introduced its first digital SLR camera, the SD9, to the market in October 2002, and has established strong support from a wide range of photographers both amateur and professional alike. The second model, the SD10, released on to the market in November 2003 continued to build on the support of loyal photographers. However, demand for JPEG’s greater convenience in image handling has increased and in order to meet this demand the new SD14, powered by Foveon X3® direct image sensor, now includes JPEG mode with high image quality, high performance and versatility. Product Summary

14 megapixels Foveon X3® direct image sensor

The Foveon X3® direct image sensor featured in the Sigma SD14 digital SLR can capture all primary RGB colours at each and every pixel arranged in three layers, insuring the capture of full and complete colour. Using three silicon-embedded layers of photo detectors, stacked to take advantage of silicon’s ability to absorb red, green, and blue light at different respective depths, it efficiently reproduces colour more accurately and offers sharper resolution, pixel for pixel, than any conventional image sensor.

Until now, all other image sensors have featured a just single layer of pixels and each pixel captures only one colour of light, which has been filtered through a single colour filter. Since mosaic-based conventional image sensors capture only one-third of the colour, complicated computations are required to interpolate the colours they miss. Interpolation leads to colour errors, colour artifacts and a loss of image detail. Low pass filters must then be used to reduce colour artifacts. The use of low pass filters adversely affect sharpness and resolution of the final image captured.Foveon X3 is the registered trademark of Foveon.

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