[Rohan]

Hi,

I've been using Starry Night Pro 5 recently and it has the option to input eyepieces and scope details which it can then project over the sky maps to show the user what they should be seeing through any given eyepiece (see attached image).

So what i want to do is have one for my LX90 with no eyepieces so i can get an idea of what the FOV will be when i have a SLR attached at prime focus. Anyone know what parameters it may be. I have options to enter "type of eyepiece' ie. plossl, 'eyepice diameter' and the 'aperature field of view'. The default aperature field of view is 50deg. I have used this when entering my bintel plossl eyepieces. Should this be another figure?

Cheers in advance and i highly recommend the program for telescope control and such.