What a genius idea! I spent 5 days backpacking with my Nikon D90 and 18-200 VR zoom hanging from ny neck on the Nikon strap, and I do not recommend that! Upon returning I set out to find a better way to carry a heavy SLR. The Op/Tech strap system is the best I've found, AND it's by far the most cost effective. These in particular, if you're a hiker or wear a backpack while traveling, are awesome. They clip right onto your backpack straps and transfer the weight of the camera to your pack instead of your neck. They also stabilize the camera pretty well from swinging, etc. And don't worry about what to do when you take the backpack off- just unclip the quick release fittings and the camera goes in your hand while the straps stay on the pack! Dump the pack, connect the quick release fittings to your regular Op/Tech strap and you're back in business with a normal camera strap inside of 10 seconds. I also have the sling strap (compare to the name brands that are $80!!!) and I love that as well, all again configurable in seconds since they share the quick release fittings. Great product!