Applicable models:
for Canon 20D 30D 40D 50D SLR camera
* The battery grip is equipped with a vertical-grip shutter button, Vertical-grip main dial, AE lock/FE lock/Index/Reduce button,AF point selection/Magnify button, Vertical-grip ON/OFF switch, Extra strap connector, 1/4" Tripod screw mount. to enable shooting in the same way as a horizontal grip.
* Use of one or two BP-511A(BP-511/512/514) Series Li-ion batteries or SIX AA LR6 alkaline, HR6 Ni-Mh, FR6 Lithium, or ZR6 nickel-manganese AA batteries.
* With a storage slot that the camera bettary cover can be stored into its storage slot.
* Product Size: approximately 142.7(W)×110.5(H)×75.7(D)mm 5.6(W) × 4.4(H)×3.0(D)inch.
* Weight: about 300 grams (not including battery clip, not including batteries)