A technically perfect photograph can be the world's most boring picture.

The camera can push the new medium to its limits - and beyond. It is there - in the "beyond" - that the imaginative photographer will compete with the imaginative painter. Painting must return to the natural world from time to time for renewal of the artistic vision. The key sector of renewal of vision today is the new vistas revealed by science. Here photography, which is not only art but science also, stands on the firmest ground.

Once a photographer is convinced that the camera can lie and that, strictly speaking, the vast majority of photographs are camera lies, inasmuch as they tell only part of a story or tell it in distorted form, half the battle is won. Once he has conceded that photography is not a naturalistic medium of rendition and that striving for naturalism in a photograph is futile, he can turn his attention to using a camera to make more effective pictures.

With a short lens I can reveal the hidden things near at hand, with a long lens the hidden things far away. The telephoto lens provides a new visual sensation for people: it widens their horizons. And, conversely, the things under our nose invariably look good when blown up really big.

Photographers - idiots, of which there are so many - say, "Oh, if only I had a Nikon or a Leica, I could make great photographs." That's the dumbest thing I ever heard in my life. It's nothing but a matter of seeing, and thinking, and interest.

What matters is not what you photograph, but why and how you photograph it. Even the most controversial subject, if depicted by a sensitive photographer with honesty, sympathy, and understanding, can be transformed into an emotionally rewarding experience.

Human vision is untrustworthy, subjective and selective. Camera vision is total and non - objective.