Films: It is because of the varying effects these light rays have upon our eyes and upon photographic films that color filters are helpful and necessary in picture making. Note, however, that they are useful only in black-and-white photography. They do not result in getting pictures in natural colors.
For general photography the infrared rays can be disregarded (except for cutting out haze in long-distance photography, and for unusual effects) because ordinary and even panchromatic films are not affected by them. On the other hand the ultraviolet rays have a very marked effect upon all films.
Today there are two factors in particular that make flower photography an entrancing pastime: panchromatic films for black-and-white pictures, and color films that give you the vivid hues of nature itself. And both are enhanced, as the illustrations in these pages indicate, by extreme close-ups. |