What angle of view do wide angle, standard and telephoto lenses have?

Question

I may need the answer as soon as possible
Thanks guys

Answer 1

First, the "angle of view" is measured diagonally from lower corner to upper corner of our film or sensor.

A 16mm "full frame" fisheye lens has an angle of view of 180 degrees.

A 17mm lens has an angle of view 104 degrees.

A 35mm lens has an angle of view of 63 degrees.

A 50mm lens has an angle of view of 47 degrees.

An 85mm lens has an angle of view of 29 degrees.

A 200mm lens has an angle of view of 12.5 degrees.

A 600mm lens has an angle of view of slightly more than 4 degrees.

Hope this helps.

Answer 2

Just to add to the above.... the angles are measured corner to corner.
The formula is:
Angle = 2*arctan(d/2f),
where d is the diagonal of the sensor, f is the focal length.
For a 35mm camera, the diagonal of the sensor is 43mm.
For most DSLR's the diagonal is 30mm.

The formula breaks down somewhat for fisheye lenses, where by definition, the angle is 180 degrees, or close to it.

Answer 3

You can use this website to calculate angle of view of wide - angle, standard and telephoto lenses. The website address is http://www.usa.canon.com/html/industrial_bctv/ERC/calculator1.html