If you’ve purchased a chest camera harness, hopefully you’ve purchased one that’s adjustable. After all, every person’s proportion is different. It’s important, then to get an adjustable strap so that it can fit your proportions appropriately. If the harness you acquired does not adjust, send it back. Then get a chest camera harness that does have adjustable straps so you can make it a good fit.
Start out with the harness for camera on both your shoulders. The circular ring should be between your shoulder blades on your back. You should have a strap coming up under the arm and circling over the shoulder with two attachment hooks on either side of the chest. This is the best way to start out.
Raise the camera up to eye level to measure how far you’d like your camera to be able to swing. At the same time, reduce the length on the strap so as to create tension while holding the camera at eye level. This will ensure that pictures can be taken while the camera is strapped onto the chest camera harness.
If tension is felt in the shoulders, the straps are too tight. There should be no tension in the shoulders. It should be as comfortable as carrying a backpack and never any tighter. Those who adjust their chest camera harness this way should have no problem when it comes to using it.