variable "Photo site" means what?
The size of the photo site (pixel) can be found in the specs of the camera and should be in the scale of "um".
The focal length is the telescopes focal length in mm.
My camera has pixels sized as 3.8um
My scope has a focal length of 740mm
3.8 / 740 = 0.00513
0.00513 * 206.265 = 1.05919
If you use a reducer then you need to use the reduced focal length in the equation.
A general rule is that you would like your image scale to be between 1.0 and 2.0, but that's a
just a general suggestion.
I hope that explains it.
Edited by PirateMike, 11 August 2020 - 09:58 PM.