Comments about Think Tank Think Tank Lens Changer 300, Soft Lightly Padded Belt Pouch for Telephoto Lenses like the 300mm f/2.8 & 200mm f/2:
This is really a nice way to transport a big lens back a forth to an event. I use it with the speed belt and the shoulder strap to help keep it up and it is really nice. It doesn't swing around when attached to a belt and yet allows you to quickly store or retrive a big lens. I do wish it had just a touch more padding, but I wouldn't want it to get to bulky.