I am a professional photographer and use the EOS 100D camera as a reserve in case of emergency - and its handy for size. Because she is very handy, I needed a battery grip and had only hesitated to acquire such. By the manufacturer itself, there were not any. So I ordered this battery grip of vhbw and regret it, contrary to the other reviews here at all: The battery grip came securely packaged with me. The first outer impression is very good: the interface is similar to the camera interface, the trigger is different in the grip little from the original trigger, the rubber seems well bonded. On the back there is only one power switch off and on the handle and a flap for chute for receiving either one or two batteries. An infrared diode located at the front under a small red cover. Everything is processed overall very solid and I allow myself this judgment because I had a lot of Battery Grips in your hand. The installation of the camera is simple - a tip: Press to remove the battery door on the camera one of the two Haltklämmerchen on hinge side carefully, so easy to remove the door - and by the way tuck comfortably under control. So it is not lost. The screw can be no turning violence into the tripod socket of the camera and the handle closes completely. Under the handle there is a second tripod thread of metal. The handle and also in the holding in portrait sits securely on the camera. Is located on the side of a jack output, using this and the short cable attached to the contact of the timer is transferred to the camera. The small cable I feel not too long but just right against the other here to find description. The infrared trigger triggers the camera in burst at once, print three times, which I find very convenient. The transmitter works without problems at a distance at least 15 meters in a closed space. The only difference from the undertaking given here Advertiser description: On the back there are no buttons for selecting the focus point field, zooming are in screen view, etc. The battery grip has only one-timer at the front and the on / off switch on the rear panel and the infrared diode. More buttons and does not need it in my opinion, because the 100D is already dimensioned so compact that the original buttons of the camera can be reached more easily as a vertical shot. In short, the battery grip of vhbw is highly recommended in processing, function and last but not least the price of around 45 euros. Incidentally the shipment has only two days needed - that was great.