Changes the focal
length on a camera. Zooming in is like using a telephoto lens. Zooming
out is like using a wider angle lens.
You can use zoom in both
a perspective or orthographic view.
To move in or out without
changing the viewing angle, use Dolly.
View > Camera Tools
> Zoom Tool > 
- Zoom Scale
-
Scales the speed of the camera movement.
The slider range is 0.01 to 3. The default value is 1.
