I like to capture my wildlife images when on the move (I get bored to easy to sit in a hide) so I purchased this strap as a soloution for carrying my Canon 5D MK111 with the Canon 300mm F4L when out hiking. The camera and lens combo is rather heavy and bulky. Previously I had been carrying this set up with normal camera strap round my neck and the camera supported on the straps of my back pack - not great especially on long hikes.
This black rapid is superb. Firstly I really can not feel the weight of the camera on my body. The shoulder strap with the supporting side strap really supports the camera and it's weight. Secondly there are clips of the strap is itself which allows me to clamp the camera round the small of my back when not in use, however the clip design allows me to release the camera and get the lens to my face instantly so o don't miss a shot.
I am really happy with my investment as I had stopped taking my pro camera out with on hikes and had been missing out on some superb wildlife images.... not anymore though!!!