The x-ray machines we use at our stations are similar to those used for hand luggage at airports, and according to the British Photographers' Liaison Committee (BPLC), are safe for all normal film types, up to and including ISO 400.

In most cases these films can be x-rayed up to 32 times without suffering any damage, while processed film can be x-rayed any number of times.

Specialist film (ISO 800 and above) can be affected if it’s x-rayed more than eight times, but the change is barely visible to the naked eye and only shows when the film is exposed around 32 times.

Digital camera memory cards aren’t affected by our x-ray machines.

If you’d prefer not to put your film through the x-ray machine, just ask one of the security team if they can search your bag by hand instead and they’ll do their best to help.

To find out more, please call the BPLC on +44 (0)20 7739 6669.