Oops, sorry I didn't see this. Did you find it? It is the func. set button in the middle of the back of your camera. First option will be Fine/Superfine, if you move your curser down once, you can change the size of your pictures (L=3072X2304, on down to S=640x480). But as Russian Blue said I keep mine on Superfine and Large, that way if I want to crop some background out of a picture it is still large enough to get a decent 4X6 photo. I learned the hard way that sometimes if you crop it will be a fuzzy picture, so you have to be careful how may pixels it is etc.