This is composition; knowing what to select, how to arrange, what to emphasize or eliminate and how to do it... - Arthur Hammond

A photograph can be made with an uncorrected lens, or with no lens at all by making an exposure through a fine needle-hole in a thin metal disc, and the result may be a picture showing the characteristic virtue of photography, the rendering of infinitely delicate gradations of tone. This is where photography stands alone, and this is the distinguishing quality which has given it a place among the fine arts.

The eye is, practically, a long-focus lens. It covers only a comparatively narrow angle, and in order to see as much as can be included in a picture made with a short-focus lens we have to move the eyes a little and look at the various objects in succession.

For outdoor work, landscape and marine pictures, a long-focus lens is usually more satisfactory, because with it we can more easily isolate and emphasize the principal object of interest, and make it large enough without having to get too close.