Horizontal vs. vertical viewing angle

[maartenvd84 0]

Hi,

 

I only see withing camera specifications the horizontal viewing angle, but never the vertical viewing angle.

 

Specific case: I bought an Acti E72 dome camera horizontal viewing angle of 83 degrees.

 

Seen the fact that the images are taken in 16:9 format, can we say that the vertical viewing angle is 47 degrees?

(9/16 = 0.5625 --> 0.5625 * Length = Height, so 0.5625*83=47).

I want to measure upfront where to put the camera to have (theoretically) everything well in the picture.

 

Thanks in advance.

Maarten

[prd 0]

i guess that's pretty much it for lenses above 3.6mm

[maartenvd84 0]

Thanks!