Chemistry, physics, and optics enlarge our scope; it is for us to apply them as part of our technique in order to see whether they can add to what we wish to express. But a whole fetishism has grown up around the technique of photography. Technique should be so conceived and adapted as to induce a way of seeing things, preferably in essentials, excluding the effects of gratuitous virtuosity and other ineptitudes. Technique is important in that we have to master it, but it is the result that counts.