So Velvia 50 hasn't been manufactured for a while due to a required
component being unavailable. And most, if not all, stores have run out
of it in 135 format. However it seems it's still fairly available at
120 format - is this just because 120 format film stock moves slower

Does anyone have up to date information on the status of films passing
through the carry-on x-ray machines? I'm taking a batch of Pan-F and Velvia
to the states - I havene't had any problems before, but it's been a while
since I've done it (also, is there any different between UK ...