I tested this product with two cameras: a Panasonic HCV 770 camcorder, a Canon Vixia HFS100 camcorder and a Nikon D5500 DSLR with a 17-55 2.8 lens. for use with my camcorder, which I named "Frankenrig". This is an HCV 770 camcorder with an uneven shoe mount, a closed Zoom H1n that I have used as both a recorder and a boom mic. I bought the CAMVATE with the intention of using it as a camcorder stabilizer. I don't want to hold the Frankenrig like a soccer ball anymore. Frankenrig is heavy, so stability is key. The following images relate specifically to the difficulties I had with the HCV 770. The fully inserted handle is somewhat unstable. Notice the space in the first picture. It also doesn't run stably without all the accessories, so I'm not sure if this is an issue with all HCV 770s or just the one I bought. I didn't want the threads of both products to fray from all the jiggling and any camera tilt noise wouldn't be workable, so I ran to the hardware store and grabbed some 1/4" 1-1./4" wing washer and rubber washer 5/16" x 1 1/4" x 1/16". The handle also comes with a nylon washer that I left behind when I installed it. I then put the metal washer on top of the nylon washer and finally the rubber washer on top so that it would attach to the base of the camera (pic 2). Now the grip screws in much more reliably and the camera stands very stable. The slot is closed and it now takes a college to try and unscrew the grip. Very safe. Try this trick if you can't find the original plate to change the balance.This knob screws securely into the bottom of my D5500 with little effort.It was very stable even with a slightly shorter lens.It worked exactly as stated. It's the same distance, but I don't think the puck trick would be necessary to stabilize the camera. Camcorder threads, not the grip itself. The grip is strong, smooth, and allows plenty of room for modification. You can tell this was intended for a more complex setup, but this simple usage is fine too. So far, so good!