Delamax leather hand strap for all digital and film SLR cameras - Canon, Nikon, Sony Alpha, Minolta, Pentax, Sigma, Olympus and many others. (Electronics)
So ever anticipate the camera which I have hanging from the strap, is an EOS550D with a 18-200er lens and battery grip. So quite a bit of weight. The gefriemele with the attachment to the camera took me about an hour, but then I had it set optimally.