3 of 6 people found the following review helpful
Great if you never have to take it off,
This review is from: Neewer® Vertical Battery Grip for Canon EOS 5D MARK II Digital SLR Camera Replacement for Canon BG-E6 Battery Grip (Electronics)
This factory product is great if you can put it on and leave it on. It works exactly as it should. If you need to remove it occasionally then I would advise against buying it and just get used to shooting without it. Te internal gears are both plastic and metal and when the plastic gives out, then the grip is stuck on. Or, if you are really unlucky, it's stuck partially on, where the camera won't work and you can't get it off. There is no solution other than to send it in to Canon for repair. Replace the poorly designed plastic gear with metal, and then this device is a must have, until then, avoid it if you need to remove it on occasion.