At times I use a similar bag, which I purchased thirty years ago and still in excellent condition. http://www.weatherornotphoto.com/billinghambags.html![]()
When I have the heavy 70-200 L IS lens on my 5D. I then use a Manfrotto 684B Monopod. Camera securely screwed on. I did have a monopod with a quick release head, which released when I was carrying my camera on my shoulder. Hence the secure head.
Since the start of this Strap debate. I have placed on order a Op/tech Pro strap on order. I will give a update after I have used it for a while.
Strap (around the neck type)
It has a small insert in the middle alot like the domke's inserts, but has two divders in there that I have set up to support the body of the camera with the lens facing down. I have my 50mm f/1.8 down one of the sections too. The insert also has a flap with velcro that can be used to cover the lcd on the camera. But with the 70-200 the flap on the insert isn't big enough, so I just tuck it out of the way. The main flap is still fine though.
