mike_bayer
Contributor
much appreciated folks
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That is great advise CompDude. Unfortunately, the A570 is no longer being manufactured by Canon and most of the retailers don't have it on stock anymore. You may find it on eBay, but i suspect that will be a thing of the past pretty soon.
There is however an alternative to the A570 which is its spiritual offspring the Canon A590 IS. This camera offers full manual controls. Shutter speed can be controlled up to 1/2000 of a second and f-stop control ranges from about f2.5 to f8. Not all f-stops, but quite an useful range for such a compact camera. It even has a meter on Manual mode that tells you if the photo is properly exposed as you change the settings, a feature that you rarely see in a compact model.
The CHDK hack is supported for this camera, which provides special functionality such as RAW, Histograms, Overexposure warnings and a lot more. It uses the same image processor (Digic III) as the G9 & G10!
The thing about the A590 is that Canon doesn't make a housing for it. Ikelite does one and it's not of the compact type, still it is of a reasonable size. You can get both the camera and Ikelite housing for around $400, and as CompDude said, you can also use external wide and macro lenses from Inon, Ikelite and others.
Check it out. Hope it helps.