Sigma SD1 Merrill (SD1m) is Sigma's Flagship DSLR, inside its lightweight yet solid magnesium alloy body, it featuring a 46 megapixel Foveon X3 direct image “Merrill” sensor ensures outstanding resolution and natural rendering with rich gradation as well as a three-dimensional feel. SD1 Merrill incorporate a “Dual TRUE II” image processing engine and DDR III buffer ensure the high speed processing of images without lowering the quality.
SD1
Sigma SD1 DSLR User's Manual Guide (Owners Instruction)
This truly groundbreaking Sigma SD1 Digital SLR camera incorporates a 46 megapixel (4,800 x 3,200 x 3 layers) 24x16mm APS-C X3 direct image sensor. The SD1 is Sigma's flagship digital SLR model housed in a solid magnesium alloy body making it extremely lightweight with an overall nice feel and pleasant handling. The weather resistant feature protects the camera from the effects of harsh weather conditions.