The DSLR-A100 can optimize dynamic range, meaning the range from highlights to shadows, including gain and contrast, through in-camera hardware processing.

10 megapixel APS-C CCD
Interestingly Sony has gone for CCD rather than CMOS with this camera, so it's not the same sensor as used in the DSC-R1. We've no official confirmation but it seems likely that this is the same 23.6 x 15.8 mm CCD used in the Nikon D200.

I got some good results while learning to use the camera. The noise issue referred to in other reviews wouldn't bother me, because I rarely take low light photos.

Unfortunately, after about 150 pictures, the camera stopped working. I received an error message after taking a picture. I called Sony customer service. After 45 minutes and a couple of contacts, no one had heard of the error message (odd that they would program an error message and then not tell support people what it means). I had to return the camera to Sony for repairs, at my expense....with a 7-10 business day turnaround. Maybe I've been spoiled by quick turn arounds (and free shipping) by Apple, Dell, HP, and others, but that seems a little long.