10-25-2007, 04:21 PM
Here is a small chart on the viewing angles you can achieve with certain diameter lens.
Lens |----------------| Angle
2.9mm 120o
4.3mm 78o
6.0mm 53o
8.0mm 39o
12.0mm 26o
16.0mm 19o
Lens |----------------| Angle
2.9mm 120o
4.3mm 78o
6.0mm 53o
8.0mm 39o
12.0mm 26o
16.0mm 19o