This battery grip for the new Sony SLT A77 is currently very difficult to acquire on the open market, so I tried it on Amazon. The handle is sealed against dirt and moisture, is made of a magnesium alloy and is no better equip the handling aspect. In addition, also in vertical attitude almost all camera operations are additionally available and facilitate handling in the combination considerably. Equipped with two batteries is the operating time of the camera now a big plus compared to the camera in solo mode. Regarding the combination of the grip has substantially increased even if the camera alone anyway does not have small dimensions. Overall, the battery grip efüllt all my expectations, so 5 star as well as a recommendation to potential buyers.