-PHOTOGRAPHY TO-DAY . . . By D. A. Spencer Photography
, To-day (Oxford University Press, 3s. 6d.) is Soinethingniore_than -a-handbook for amateur photographers. Yet it does not quite reach the standard of a source of know- ledge for technically skilled but theoretically ignorant students. However, within its limited sphere it is undoubtedly the best book of its kind. Although very interesting about some of the newer developments, Mr. Spencer might have approached the problems of the ordinary enthusiastic photographer in a slightly more mathematically philosophical manner. For instance, it would have been valuable to have an inspired section about ,perspective in terms of focal length and angle of vision of the lens and, further, the reasons why shorter, foeid=length lenses give. greater-depth of 'teens.' More -precise, information on the types of filter to be using in order to obtain given effects would have been useful.
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