Ok I tried for three hours tonight to get my 600mm lens to fit in my Airport Addicted, no go. It is just to tight and doesn't leave much room for other lens's or bodies.
Returning to the orignial statement, I find it hard to beleive this is a problematic fit. The Airport Addicted is 8" deep in the lower 1/3 and is 21" tall on the interior. Are you trying to pack away your lens with a 1D series body attached? This is generally not advised for durability of the lens/camera combination. But it should fit! The Kinesis and other bags like the Lens Trekker will work fine, but you will have an even tougher time toting all of your extras lenses and accessories as those are bags dedicated to a single lens compartment. You can lash on additonal smaller lens compartments, but it gets rather ungainly.
The Airport Addicted is the largest capacity, airline legal camera bag out there. for example it is much deeper than a Photo Trekker. Other lens bags may be too deep to be airline legal, but one may not necessarily run in to a carry on problem.
Mike K
...the only down side to the kinesis is the backpack harness which is not as comfortable as the one of the lowepro 600..

