Image Area

First: Image Area = Angle of View

The image area is dictated primarily by the focal length. The longer the focal length, the narrower the image area and vice versa.

There are four primary types of lenses:

*Type of Lens*	*Focal Length*	*Angle of View*	*Note*
Wide Angle	21mm-35mm	64-92	Will create a curved distorted image
Normal	50mm	46	Approximates a real angle of view
Telephoto	105mm-300mm	8-21	Will create a flat distorted image
Zoom	Variable	Variable	Can be adjusted