It’s very possible that camera straps with a gargantuan lens can be very uncomfortable depending on what strap you’re using and its available padding. This is one of the reasons why some photographers use sling straps, and a new Kickstarter is trying to provide a better solution. It’s called the BOOMR, and it essentially puts your camera on a coiled bungee system around your chest. And yes, it’s an actual bungee. The idea is to provide both padding to your chest/shoulder/neck while using the bungee system to semi-suspend the camera and ensure comfort.