For the last several years, there has been an explosion of lens strap designs that try to be more than something to hang a camera from. Instead, these specialty sling straps, dual straps and multi-purpose straps offer a “high tech” alternative to the traditional strap that might have come with a new camera.
Though I don’t deny the advantages of such systems, I have a hard time with a camera strap that requires a learning curve. Photography can be complicated enough and when you add a camera strap that demands its own user’s manual, I really wonder if something as simple as a strap has suffered from over engineering.