professional battery grip vg-c90am for sony alpha dslr-a900 a850
it can hold one or two np-fm500h li-ion batteries doubling the battery capacity of your camera . a vertical shutter release button on the grip makes shooting with the camera in a vertical position much easier . this professional edition comes with several functional buttons . it provides additional shutter release command dial ae lock and exposure buttons for easier vertical shooting . tripod screw mount . same functions as the original battery grip sony vg-c90am battery compatible 2x np-fm500h batteries power switch camera s power switchdimensions 137 w x121 h x87 d mm weight approx. 280g . without batteries and battery magazine 1 year warranty by seller