It is essential for the photographer to know the effect of...

It is essential for the photographer to know the effect of his lenses. The lens is his eye, and it makes or ruins his pictures. A feeling for composition is a great asset. I think it is very much a matter of instinct. It can perhaps be developed, but I doubt if it can be learned. To achieve his best work, the young photographer must discover what really excites him visually. He must discover his own world.