Last week I went on a business trip to London and I was taking 2 video cameras [Sony NX5] and 2 tripods with me. I needed appropriate airline for being able to take this gear with me = no Ryanair, sorry. I went with British Airways because they allow 2 hand baggages in the cabin. That means I could have one bag of size 56cm x 45cm x 25cm (22in x 18in x 10in) and another one 45cm x 36cm x 20cm (18in x 14in x 8in). That was perfect for my personal bag and one video camera [my colleague had other video camera and his bag].
I put tripods and cables in the checked baggage however it was bigger than 90 cm allowance. BUT British Airways allows oversized baggage up to 190 cm free of charge! So no problem there.
If you’re worried about video camera/big batteries or any item regarding video, it’s fine. You are allowed to take all those things with you as a hand baggage. When me and my colleague arrived, our tripods were totally fine, no damage at all.
Another reason why I chose British Airways over Ryanair for example was landing on Heathrow airport. The underground [Piccadilly line] goes from there straight to the city centre. We got off the plane, went for our checked baggage, put it on a trolley [it was really heavy] and went to the underground. Sweet!
Oh and did I mention you get free booze? :D