Meanwhile there are a lot of battery grips for the D5100 and you come to ponder, which is probably best !? I chose because of the good reviews here for Meike professional grip and I was not disappointed! The quality is very good, the processing also. The handle fits flush with the camera body and evaluates the real optics on. But more importantly, also the handling of the camera is greatly improved. Especially for something bigger hands he is actually a must! It has the camera "under control" and a more secure feeling while holding what is better especially helpful when using a telephoto. Another positive effect is of course the possibility of using 2 batteries, also a "low battery" as this Battery EN-EL14 for Nikon Coolpix P7000 / P 7000 here works perfectly! A cable must be connected to the vertical shutter release, (Nikon's guilt so) is so due to the lack of contacts in the battery compartment of the D5100 unavoidable. However, it is not annoying, though the cable had slightly shorter may be. I use the portrait also rather rare, so I have no problem with it. All in all a successful accessories! The only complaint is only the thumb screw for attaching the handle to the camera. This has pretty much play and rattles (but quiet) therefore in some movements of the camera. But that does not detract from my satisfied overall impression from Meike professional battery grip. From me there is a strong buy recommendation!