Monday, December 11, 2006

Lenses, the eyes of a camera

Camera lenses may be of diffrent types:

- Wide angle lenses have a shorter focal length, and give a more real life perspective. They make it appear as if closer objects look large in relation to those in the background. Viewers feel a sense of involvement. The camera elements of a wide angle lens float inside their housing. The depth of field is relatively large while perspective is exaggerated.

- Telephoto lenses magnigy the distance subject and give more of a flattening effect
- Mirror lenses geneate a similar effect to telephoto but use a combination of mirrors and lenses to do this
- Zoom lenses cover a variety of focal lengths.
- Macro lens on the other hand has the ability to focus closely and give magnified views of the small subjects. Many zoom lenses themselves have a macro facility