Miscellaneous optionals.—These should be kept as low in weight as possible. Tact is required in limiting the number of cameras on a trip. They add appreciably to the weight carried, and it is usually possible to arrange that one camera be taken, other members of the party sharing in its use, the cost of films, and the prints. A spring scale is useful when packs are loaded at the start of a trip—but should be left there.
Equipment for Rock and Ice
As the ski mountaineer reaches terrain which is precipitous or heavily glaciated, he will find he must place less emphasis on skiing and more on mountaineering. He may reach a point where he must forsake his skis for specialized equipment to aid him on high-angle rock and ice; for while he will be able to carry ice ax, crampons, and rope in his rucksack as he skis on gentle slopes, he will probably be more than glad to leave all excess equipment, including skis, in a base camp when finally he must rely on ax and rope. Certain minimum requirements exist for the special aids the ski mountaineer will need, and these are given below. An objective study of the merits and demerits of "Modern Ice-Climbing Equipment" is given by Robert L. M. Underhill in the Canadian Alpine Journal for 1933, and his discussion is recommended to the ski mountaineer with ambitions.