The delineation of sharp outlines and redundance of detail is not wrong in itself, but it is usually inexpedient when considered with respect to the effect to be produced, similarly the suppression of sharp focus both as regards outlines and details has no artistic merit of itself except as it assists the picture to impress the beholder first with the general effect.
The painter and photographer start from two opposite standpoints. The painter, or draughtsman, starts with nothing but blank paper, and having built up his picture and produced his desired effect he elaborates no further; the photographer with his more or less mechanically produced facsimile starts from the opposite extreme with a transcendentally elaborate image, from which he will require to eliminate all such excess of truth as is likely to force the mere facts of the view upon the beholder's attention.
Photography, so faultlessly complete in its delineation, gives us more than the pictorial worker needs for the expression of an idea, and this is why I would remind the student that pictorial photography is not photography in the full sense of the word, but the application of some of its powers, just as much as we need and no more, to a definite end.
As just hinted the purpose of a picture is to express ideas, hence I will fall back on a kind of definition which I have used on a previous occasion that a picture is the portrayal of visible concrete things for the expression of abstract ideas.
To give an example by way of exposition we may look upon a picture and be made to feel by it the calm and luminous atmosphere of evening; we feel at once the restfulness, and almost feel the warmth of the humid air, giving place to the chill gathering mists of night; but the same objects, the same tangible materials, paper, pigment, metallic salts, etc., in another picture give us the sense of angry turbulent storm or perhaps bright joyous sunshine frolicking with the fresh breezes on the hill-tops. These are abstract ideas expressed or created by the manner in which concrete things, commonplace facts, are portrayed and rendered.
Finally, let me enunciate that a very excellent photograph may not necessarily be a good picture, because it may contain more than is required for the expression of its idea, and the surplus will overwhelm it; again, a good pictorial photograph may be but a poor photograph, because if we claim the right to apply photographic means to pictorial ends, we may find it convenient to leave out the very qualities which the scientific or technical expert considers most precious.
And now I think we may proceed to more practical matters.
COMPOSITION AND SELECTION.
In all matters from which the eye expects to derive pleasure, symmetry of design seems essential. In the formation of the letters that we write, in personal attire, in the decoration of our homes, in buildings, and practically in everything which is not of a purely utilitarian character, a sense of proportion and a symmetrical disposition of parts is observed. Hence it is no source of surprise that in a picture which as much as anything should aim at pleasing the eye, design, otherwise Composition, is with Expression a co-essential.
In a purely decorative production this natural desire of design is the only thing to be observed, but in a picture which may be decorative, but must be something more, we have expression as well to consider. If decoration alone were to be regarded, something like fixed rules might perhaps be tyrannically laid down, but in a picture the implicit observance of rules of composition would be certain to make itself seen in the result, and the undue obtrusiveness of a code of rules would be as inimical to the supremacy of ideas and feelings, as the excessive prominence of fact would be, which has already been described.