"Peter Duniho" wrote in message
...

For a consumer-grade camera, as long as you set the JPEG format to the
highest resolution, lowest-compression setting, you should fine. You'd be
unlikely to notice any difference between the raw image and the compressed
one. Any of the professional-grade digital SLRs should have an option for
saving the data in a "raw" format (which typically is actually just a
proprietary, non-lossy compressed format). One of Canon's higher-end
models
actually can have two memory cards installed and allows you to save each
picture twice, JPEG to one memory card and their raw format in the other.

Several cameras do that. My Nikon D70 even does that and it saves both files
to the same card.