Recently traveled inbound to East Asia from California and at the check-in kiosk, all the sudden, "Please place your CARRY ON bags on the weight scale."
Sorry but both bags are over the weight limit (7KG/15LBS). Please check one in he said nicely. I was just concerned about the Macbook pro + Canon bodies & glass. He was nice and very patient and told me if I get it down a few more kilos then I can carry it on. So I had to unpack what was worth least. Batteries AA's, LP-e6s etc.. Canon 580ex2 all went into the checked luggage. Basically a 7LB laptop is all you can carry on as 1 carry on.
I bring this up because a year ago on a work trip. Brought the pelican storm im2500 on board + the haul pack with 2 bodies 5 lenses + flashes + batteries + external hard drives etc.. & NO questions or hassle.
Below are the links to the regulation if you fly Cathay Pacific.
Not only is there a weight restriction. There is now a Li-ION battery restriction. If you are bringing on board a Hyper Juice for the mac pro 150wh is max! If you are bringing a bunch of extra camera batteries, they must be individually wrapped or in the equipment. Basically no exposed terminals. Well you guys can refer to the links for more details.
Good luck fellow POTN'ers. Happy & Safe Travels!