“Sigma announces the new SD1 digital SLR camera. The SD1 incorporates a 46 megapixel (4,800Ã—3,200Ã—3 layers) image sensor that captures all primary RGB colors at each pixel location, ensuring full and complete color. Furthermore, the SD1 incorporates a new image processing engine and an autofocus system with an 11 point twin cross sensor. The lightweight magnesium alloy body is designed to withstand rough use in harsh conditions Buttons & connections benefit from O-ring sealings to protect against dust and water…”
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I have to admit, I'm getting much more interested in the Sigma sensors now that the resolution is getting to a size that I can work with. Stacking the sensors makes sense… If it were a full-sized sensor… I'd be even more intriguing.