Fair point - I was a bit too rigid in my statement. High-end DSLRs already support shutter bracketing of this sort. From a technical perspective, my mid-range

Fair point - I was a bit too rigid in my statement. High-end DSLRs already support shutter bracketing of this sort. From a technical perspective, my mid-range Nikon D7000 can take 16.2 megapixel images at a rate of 6 frames per second, which may or may not be adequate for what you're proposing. Of course at that point the camera's image buffer fills up and the speed of your storage and the compression engine becomes the bigger technical challenge. Whether you can take decent resolution photos on a device priced at consumer-level at a reasonable rate (without much of a delay between shots) becomes an interesting question and perhaps an interesting camera feature. If I had a Canon I would use CHDK to experiment with this.