I believe, but I might be wrong, that ThinkTank have a specially designed bag for a 500/4, body, and laptop, that fits all the dimensions for hand luggage on flights. Might be worth looking into.
I think the Think Tank ( bit of a tongue twister there) Acceleration might fit the bill.
Looks a good bag but unfortunately not available in the UK. Shipping costs and taxes also add a small fortune.
Thanks for posting the link.
I am interested in a new bag for my 500mm too so I am open to suggestions !
My current shortlist includes the ThinkTank Streetwalker Pro, the Tenba Shootout Medium backpack and the Lowepro Photo Trekker.
I missed the TT Streetwalker Pro ! That would fit the bill perfectly for me.
Lightweight, at £120 the cheapest of the three. Available in the UK and comes with a lifetime warranty.Perfect for carrying my 500mm on holiday as it is within the airline carry on size limits.
The Tenba is the same as my TT Antidote, designed for a maximum 300f2.8 but might, like the TT take a 500mm at a push
The Lowepro Trekker is a non starter on weight alone.
Thanks Barry, you have solved my next bag problem if not your own !