High dose X-ray equipment is now commonly used to scan checked luggage to detect explosives. Unfortunately, this equipment will also fog unprocessed film, causing damage to the film that can't be corrected during processing. Planning ahead with the tips below will keep your travel photos from being degraded by the security equipment.

• DO NOT place single use cameras or film in luggage that you will check through as cargo. High dose equipment is used only for checked luggage.

• Keep your film and loaded cameras in carry-on bags. The scanners used for carry-on luggage emit a much lower level of radiation that is much safer for film than the high dose X-ray equipment used for checked luggage.

• When flying in the U.S., you may request a hand search of your carry on camera bag instead of having it X-rayed. Doing so is advisable if you will be going through five or more x-ray examinations and have high speed film (faster than ISO 400). Remove your film from the factory packaging and place it in a clear zip bag or container to help expedite the hand inspection.

• If you will be doing extensive shooting, consider shipping your film ahead by UPS, Fed/Ex or other expedited carrier. Check with the carrier first to make sure packages aren't x-rayed.

• Use prepaid processing mailers from Porter's to mail your exposed film from your destination, so it won't be a concern on your return trip.

• What does film damaged by X-rays look like? It varies, depending on the film speed, how it is positioned in relation to the scanner and whether an image is on the outside of the roll or near the core. Negative film (B&W or color) will have dark bands that result in light bands or patterns on the prints. On slide film, the patterns will be lighter than the surrounding areas.

• Processed film and prints as well as digital cameras and media are not affected by x-ray scanning equipment.