Ricochetrider
Member
It's pretty much impossible in the UK and I don't think ISO 3200 would help either. Trying to make it easier for them (out of boxes in clear plastic bag etc.) doesn't help, they're far too busy rooting in bags for errant lipsticks.
Note also that many UK 'budget' carriers only allow small carry-on dimensions/weights (and some charge you extra to put anything in the overhead lockers).
I had a stop and flight change at Heathrow in November- switching from one airline to another coming from Amsterdam and going to Philadelphia. For anyone who doesn't know Heathrow it's a security stringent airport. I asked about hand checking my film, and the person was kind enough to take my film to show to and ask his supervisor about a hand check. In the end, since it was only 400 speed film, he sent it thru the machine- BUT it would have taken FAR less time and energy to just hand check the film rather than chase down the crew boss, ask, and run back saying no. I was flying in on Vueling out of A-dam and flying out on British Airways, you cannot make a connection at Heathrow without going thru passport control, security etc, both inbound and out again. I always check a bag where I put my tripod and things I cannot carry on, then have a carry-on bag such as my usual medium size messenger bag, that fits under the seat, for carrying cameras, film, some reading material for the flight, water & snacks, phone charging battery, cords etc, and maybe my iPad.