Telephotography. E-book. Formato PDF - 9780243753659

Telephotography. E-book. Formato PDF. The outstanding feature of the telephoto lens is its power of giving large direct pictures of distant objects. A mountain twenty miles away appears insignificant in an ordinary photograph. A tele photograph of the mountain may be made from the same standpoint, showing it thirty times as large as before. The telephoto lens stands, in fact, in the same relation to an ordinary lens that a telescope does to the unaided eye. Details which are quite invisible to an observer can be plainly shown on a telephotograph'. In the picture on page 97, there is a general View of the Mont Blane range. In the next two pictures on pages 103 and 107 taken from the same standpoint with a telephoto lens, the very ridges and depressions in the snow can be seen. One of the earliest examples of telephotography was the famous picture of Mont Blane taken from Geneva, forty miles away. An even more wonderful telephotograph of Mount Kenya in British East Africa is reproduced on page 1. This was taken with a high-power telephoto lens from Nairobi, ninety miles away.