This Battery Grip is suitable for Canon EOS 450D and 1000D. Slotting into the battery bay, it is able to take 6 AA batteries or two of the 450D's new LP-E5 batteries. It provides a shutter button and control dial along with AE/FE Lock, exposure compensation and AF point selection buttons in a vertical orientation. The battery grip offers creative flexibility by providing a stable grip for vertical as well as horizontal positions.