[Startrek (Martin)]

Would like to confirm if the following formula is correct to find out your FOV at prime focus when imaging targets

Formula
Width of camera chip in mm x 3460 / Telescope focal length in mm

Example: My 8” f5 newt with a Canon 600 D at prime focus

So width 22.3mm x 3460 / 1000mm = 77.2 arc minutes

and height 14.9mm x 3460 / 1000mm = 51.5 arc minutes

Therefore image FOV would be 77.2 arc minutes wide and 51.5 arc minutes high

Please advise if the above is correct?

Thanks in advance