Canon BG-E8 Battery Grip for Canon T2i, T3i and T4i Digital SLR Cameras – Product Description:
The Canon BG%2DE8 Battery Grip for the EOS Digital Rebel T2i SLR camera holds up to %282%29 BG%2DE8 battery packs simultaneously to effectively double your shooting power%2C plus the grip includes a holder to use %286%29 AA batteries%2E In addition%2C the grip includes a vertical shutter release and a mode wheel to provide access to all of the camera functions and make shooting with the camera in a vertical position just as comfortable as shooting horizontally%2E
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Canon BG-E8 Battery Grip for Canon T2i, T3i and T4i Digital SLR Cameras – Customer Review:
A MUST HAVE ACCESSORY REGARDLESS OF HAND SIZE!
The grip is an accessory you should have for this camera. I do have larger hands, so holding the camera is a bit uncomfortable. But with the grip it helps out a lot.
Benefits of it: Can put in 2 battery packs to have lots of shooting time without switching. Also there are camera controls (trigger and other controls) on it which allow you to shoot vertical pictures without having to twist your hands.
While it adds some weight, the camera is actually too light for my taste. Adding this to it helps keep my shots steadier without having to rely too much on IS lenses.
I also had the appropriate grip on my Canon Rebel XTi and never took it off for years.
There is also an adapter included that will take AA batteries if you are desperate for power and forgot your charger.