TomV wrote:
I use a Lowepro Lens Trekker AW 600 III for my Sony 500mm f/4. With the hood inverted, there is a velcro'd shelf that you can add another body, small lens. Plenty of room inside to place another lens that is protected in its own case.
Thanks Tom. I did find the AW 600 yesterday at a camera store but too large to meet aircraft specs for carry-on.