Canon shrank the dimensions of the 5.5-ounce Canon IXUS 40 / Powershot SD300 down to an ultraslim 3.4-by-2.1-by-0.83-inch package that can slip into any pocket. This Digital Elph is made even more easily pocketable by its reduced number of protrusions, starting with the hand-strap lug, which is now recessed into the body. The camera’s exterior is all metal, except for plastic doors covering the battery/SD memory card slots and A/V and USB ports.