... 7mm 5 hold BP511 battery grip BG-E2N for Canon Specification Product model, BG-E2NColor, BlackDimensions, 142.7 ... -E2N for Canon EOS 50D/40D/30D/20D Features,1. Canon BG-E2N which is used for Canon EOS 50D/ ... batteries or six AA alkaline batteries. 2. It is also equipped with a vertical-grip shutter button, dial ... same way as a horizontal grip.3. It is equipped with an independent ON/OFF switch. Switching ...