I want to add DLSR lenses to my equipment list so I can model the FOV through my DSLR for each lens. Adding the actual DLSR is easy but I am a bit confused about adding the lenses. When entering a telescope I enter the aperture and the focal ratio and it automatically computes the focal length. What should I do with DSLR lenses? For example, the Rokinon 14mm f 2.8. Should I just enter the aperture as 14mm and the focal ratio as 1 as that will spit out the focal length as 14mm?
Adding DSLR lenses to Starry Night Pro