Quote:
|
What does the camera come with, and what direction do we move to get a wider view?
|
The camera has a 1/4 inch sensor and the default lens is a 4mm focal length. If you go to the URL of a calculator such as
http://www.123securityproducts.com/calculator.html
and type in the distance to the object along with your lens description, and it will tell you the extent of the image at that distance.
For example, with the default lens and sensor, it calculates that you have a viewing angle of 73 degrees and at 30 feet from the camera, the image goes from floor to twenty feet above, and the distance from the leftmost to rightmost object in the image is 27 feet. Meaning that from midfield, the camera image contains the entire driver area.
Type in a new lens focal length, and it updates the description of what is in the image. If you want to jog those neurons and look at the math behind the calculator, you may want to lookup angle of view rather than field of view on wikipedia. They are closely related, and the angle of view seems to be the better documented term.
Greg McKaskle