I posted this same question over at FM
I need all the help I can get.
I'm looking for a new camera bag. I have very specific needs and haven't been finding anything to match. Here's what I am looking for:
- Has to fit my Canon 20D 100-400L, 17-40 L, 50 mm, and 420 EX flash.
- Must strap to the handle of a rolling suitcase
- Has to be small enough to fit inside a large backpack.
- Needs a lot of padding. I travel a lot and my equipment gets abused.
My old bag was a lowepro micro trecker. It fit all of my equipment tightly, but I found I didn't like the backpack design. Most times when I needed a backpack the micro trecker ended up getting carried inside a larger backpack. Getting access to my equipment was a pain. 90% of my new bag's use will be taking my equipment through airports. I like to have quick access to my camera also. I missed some shots with the micro trecker because I always had to have my longest lens on the camera for everything to fit in the bag.
Thanks
Dave
-- 
