I had an A75, but the CCD eventually went bad.  I had to bang it around 
repeatedly in order to get it to "stabilize" the image, and then I could 
take a few pictures.  I loved that camera, though.

I replaced it with a newer model (A570) which has more mega-pixels, etc, but 
I don't think it takes pictures as well as my old A75.  One feature notably 
lacking is the manual shutter speed control.  On my A75, I could set it all 
the way up to 30 seconds, which made for some fun night-time photos.  The 
new camera has only automatic settings.  But more than that, the pictures 
just look washed-out.  It's like it's trying too hard to eliminate shadows, 
and the end-result ends up looking very flat and grainy.

Maybe I'll try this out, though.


"Gilles Tran" <gitran_nospam_@wanadoo.fr> wrote in message 
news:47e59454@news.povray.org...
> Some people have managed to hack the firmware of several cheap Canon 
> cameras (Powershot/IXUS models). The hacks adds some neat additional 
> features like RAW files, manual control of shutter speed, ISO and focus, 
> exposure and focus bracketing etc.
> http://chdk.wikia.com/wiki/CHDK
> There also the possibility to script the camera behaviour in BASIC.
> Using the hacked firmware I just tried the automatic exposure bracketing 
> on my IXUS 950 and it works like a charm (see the 8-bit HDR image below, 
> composited from 5 exposures with a freeware called TraumfliegerDRI).
> http://www.oyonale.com/blog/2008/03/hacking-cheap-canon-camera.html
> I did manual exposure bracketing before on the IXUS (to create 32-bit HDR 
> environments for 3D images) but it's hard to keep the camera still between 
> shots while changing the exposure value (the camera weighs 150g), so the 
> HDR made that way tend to be blurry.
> Of course, more expensive models and SLRs can do that, but it's nice to 
> get some high-end features on such cheap models.
>
> G.
>
> -- 
> **********************
> http://www.oyonale.com
> **********************
> - Graphic experiments
> - POV-Ray, Cinema 4D and Poser computer art
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>
>

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