Special Purpose Optics
In photography, as with other human pursuits, there seems to be a
constant supply of difficult problems or special needs to cope with.
When the problems or needs involve optical equipment, the answer
sometimes lies in just using regular lenses in a new way by adding an
appropriate accessory or two. However, a problem may be stubborn enough
to require a special-purpose lens for its solution. Manufacturers are
ingenious in their ability to devise clever optics to meet specific
needs. Fortunately, such lenses often have capabilities far beyond their
primary purpose, providing the means for experimental and creative
photography as well.
Special purpose lenses have emerged to fill various photographic needs.
But because they donít seem to fit neatly into the commonly recognized
lens families, they havenít been mentioned in previous chapters. In many
ways they are similar to more ordinary optics, but each has some unusual
feature that sets it apart. Some of these lesnes, like the zoom, may
proliferate and become so popular that in the future they will tend to
establish large, distinct families of their own.
Photography is a dynamic, fast growing hobby
and profession. It is forever searching out and finding more effective
methods of capturing meaningful images. One of the ways to accomplish
this is to create new types of lenses to overcome stubborn photographic
problems. Most of us will never seek the help of these special purpose
tools, but it is comforting to know something about them in case a need
More about Special Purpose lenses
Tips on using Portraits Lens
Back to Camera Lens Features