Originally posted by jremick @PGillin - I'm having a hard time visualizing what you're talking about. Picture?
Sorry, I get bad at explaining things when I've been writing papers all day. Let have another go-round.
It goes something like this-
A piece of hardware, this -
http://4.bp.blogspot.com/_az07PLfwhLw/SwebiD8KTAI/AAAAAAAABl4/53VO99k_W2A/s1...0f093cf5b3.jpg
Attaches, with one side, to the camera's shoulder strap (which I'm assuming you use). The camera THEN goes over your shoulder, or, if the strap is long enough, across your chest. The other, "free" side of the clip, not attached to the strap, can hook through a belt loop or around your belt. The advantage while climbing is enormous. The strap is quite firmly attached to you at the waist, and so can not swing around. It can, in theory, *pivot* but I haven't had this problem. However, with the differing weight and balance of a K-5 with a zoom vs. a Spotmatic with a 55mm, YMMV.
That's not the only advantage, though. If you shoot from the tops of tall things, or leaning over railings, or from the underside of bridges, and you leave the strap clipped to you, you can shoot it without keeping the strap around your neck/shoulder/body part of choice, and have full range of motion AND know that you're camera (If it weighs under 2lbs, I make no claims beyond that) won't be lost if you lose your grip. To illustrate this-
I live in florida. It was rather dry last year, and one day a friend and I went to shoot on the edge of the everglades. I, like some sort of jacka**, thought it would be smart to climb out over a mostly-dry canal on the underside of a bridge. Once out there, I took my camera off my shoulder and took two or three shots. As I went to put the lens cap back on, the camera slipped. There was a second of sheer, unmitigated terror as all two 1/3 pounds of Spotmatic and 55mm 1.4 went out of my hands. And then... The camera almost ripped my beltloop off. ALMOST. Two pounds of equipment dangled from a 2$ clip, a 1970's vintage Pentax strap, and my pants. Apparently the look on my face was one of sheer terror, and this was somewhat comical, because, at the end of a few long seconds of pulling my camera up, I noticed just how hard my friend was laughing.
Anyways, as for a picture of the entire rig, I can only offer this crudely drawn diagram. The purple represents whatever you choose to clip your camera to, belt, camera bag, etc. and the red is the camera strap. The nice thing about the S clip is that you can clip or unclip one without accidentally undoing the other.