Remembering the intensity of the high altitude sun and the predominance of snow covered subject matter, a Polarizer filter is strongly recommended. A sturdy camera case and a comfortable strap make carrying your camera less of a worry. Those of you with video cameras are strongly encouraged to bring them. In the past, expedition members have taken some amazing footage, even from the summits. Glacier Travel and Crevasse Rescue , Selters, A., The Mountaineers, 1990.
Theft is a possibility.
Thieves will be looking for luggage that is easily opened and expensive looking. Canvas or heavy nylon duffels are your best bet for luggage. Get a small lock to secure it all. Keep your carry on to a minimum, but should include a complete change of clothes. Leave expensive looking jewelry at home.