I've got a JPEG serial camera from Adafruit that's great fun to play round with. Save data to an SD card, stream it back over an ethernet port. Its last task was a webcam which also took a week-long timelapse (a new image every thirty seconds) from my front window, while right now I've made it part of an utterly ludicrous potato battery monitor.It takes twenty seconds or so to save an image at maximum quality (the camera running at 38400bps), and the Arduino has no idea what the pixels actually are, but it's a really handy addition. Just accept that you won't be approaching anywhere near remote video with such a thing, and without some clever programming things will be very stop-start while saving images.
they always say it cant be done
Quotethey always say it cant be doneI don't think anyone has ever said you can't store a JPEG image from a camera to an SD card.Slow, yes, but not infeasible.What is usually said is that you can't do anything with the JPEG image on the Arduino, apart from moving it around.
but it really bothers me to hear somebody's idea shot down, when similar ones can and have been done.