With the Canon Battery Grip BG-E20 you improve the ease of use of the EOS 5D Mark IV. This battery grip has an ergonomic grip and extra release and adjustment buttons. This makes vertical shooting easier with the added shutter release. There is also room for 2 LP-E6 or LP-E6N batteries, so you can take pictures longer. The battery grip is made of the same magnesium housing as the 5D Mark IV and is therefore dust and water resistant.