It might have been thought that the rapid dry plate, by shortening the time of exposure so much, would have done away with the necessity for using head-rests; and many old photographers whose backs have often ached from handling the "Wilson," the "Spencer" and other enormously heavy head-rests, thanked their stars that a time of relief seemed to be at hand. But not so. The head-rest is just as necessary as ever, and the heavy ones are as advantageous now as before. The most important use of the head-rest is to keep the head in the position required. That the head should be immovable is necessary during the time of exposure. Many people are quite able to keep still enough for photographic purposes without a rest for the head, but very few are able to keep the head in the position desired by the operator without some assistance; hence the necessity fur the use of the head-rest for even the shortest exposure. One benefit, however, has been derived from the advent of short exposures; there seems no necessity for the use of the extremely heavy varieties. The lighter rests would seem to be capable of fulfilling all the requirements of a head-rest.
The Success head-rest is one variety of the lighter kinds, of which another is the Centennial. These are very useful in the studio, more particularly in posing a group, when it is necessary to have a head-rest for each one of the party; they are also sufficiently rigid for single sitters. They are in all sizes, short for children and long for adults, and if any part should be broken or get out of order duplicates can be had at trifling expense.
The Rigid Headrest.
The Rigid head-rest is of a heavier kind, and is a favorite with many who prefer a medium weight. It sets firmly on its base and can be quickly and easily adjusted to either sitting or standing figures.
The Spencer head-rests are examples of the heavier kind; they are very firm and rigid, and heavy enough to suit the most exacting gymnast or athlete. There are many other varieties of the light, medium and heavy kinds, but the cuts show the best of the various weights, and a selection can be made from these without fear or hesitation.
A gallery should have half a dozen head-rests at least, and while the majority should be of the lighter, there should be a sample of the medium and heavier, kinds, so that no important aid to good work should be lacking.