Perhaps the most annoying thing about using the SD10 is that there is no straightforward answer to the seemingly simple question, "How many megapixels?" Purists claim that it has only 3.4, and Sigma claims 10.2, counting all three colors at each of the 3.4M locations. When people ask (and when they see my prints, they DO ask), I sometimes just say 3.4, leaving them to wonder how I do it. The way I figure, when you save the file at double size, you're getting 13.7 megapixels with the same amount of interpolation on the red and blue channels as a normal camera, and more interpolation on the green channel. However you figure, the resolution is stunning, and with a little care you can make 12" by 18" prints that are as sharp as most eyes can tell.
Pros:
1. The software, especially the "fill light" function will let you quickly massage even your badly exposed pictures.
2. The great resolution.
Cons (I'm spending more space on these because Sigma's text waxes eloquent on most the pros (and they're not lying)):
1. The software. The SD10's only format is a proprietary RAW format, so you need to run everything through their raw converter before you do anything else with it.
2. The kit lenses are OK, but not great. The 18-50 in particular is vulnerable to a lot of chromatic aberration. If you're going to shoot with EX-series lenses (and you really should), you might as well just buy the body.
3. Low light performance is not stellar. ISO 800 is practically unusable, and ISO 400 is dicey.
4. The buffer is not huge, and the write speed is slow. The camera will take only 6 high-resolution shots in burst mode, and after that it can take more than a minute for the camera to recover.
All in all, however, this is a great camera, and if you get it you're likely to one-up all those folks buying digital rebels.
