In a few short weeks I'm off on a month long vacation. I'm bringing my 4x5 and as much film as I can muster together (six 50-sheet boxes and a large pile of 120 film) with me. The film is going in my carry on, NOT in my checked baggage.

The question is: for those of you who have flown recently with boxes of 4x5 film, what have your experiences with the TSA been? I won't be asking for hand inspections, I have no problem with them using the passenger carry on x-ray machine--all the film is ISO 100--but if they pull my bag aside I can not have them open the sheet film boxes. Are the agents aware why these film boxes can't be opened?

Further, would they have a reaction to large format lenses? I'll also have those in my carry on. Will they have a problem with the lenses on 5 1/2" Sinar-type metal lens boards?