I will be traveling to London in March. I am not a seasoned traveler. My equipme nt will be a small lightweight field camera, and a small lightweight tripod. 4x5 film. I will keep my equipment and film with me at all times. Any advise would be appreciated. I was wondering. The film will be in my pocket. I will put a bla nk and an exposed sheet of film outside the box so customs can see what is in th e box. But how does one do a hand inspection of film in a box? When I walk throu gh the metal detector with the film on me, can this damage my film? And if I tak e it out of the foil wrapper, and replace it with a plastic bag inside the box, when I am walking through the metal detector, there will not be any "metal" aler t. Correct? So my film will go undected? Therefore, then not needing to send it through the carry-on detector? which is stronger rays? Sorry if I'm confusing, b ut I'm inexperienced at this. This will be T-Max 400. I think I will try to get the film developed in London, but this depends on the wait. Thanks for your resp onse.