I just bought a celestron AVX mount and 8" edge HD telescope. I am an astronomy complete beginner, but I am a lens designer by trade so know optics in general fairly well. I need one or two eyepieces that will produce pleasing images of the moon and Jupiter the cost of the telescope wont create too much marital strife.
A first question is on the star diagonal. The telescope is supposedly corrected over a 42mm field. And if I want to present a field that is 2 full moons wide then that is about 35mm (my telescope EFL is 2032mm). Both of those numbers are bigger than 1.25" (31.75mm). Do I need to replace the 1.25" star diagonal with a 2" version? It seems like I do.
A second question is on the best apparent FOV. A 40mm eyepiece came with my telescope. The apparent FOV looks to be about 40 degrees, maybe less. Seems uncomfortably narrow. What is the best choice? I see eyepieces with crazy wide FOVs, like 100 degrees for sale. But it would seem like with such a wide field the eye relief would have to be really short and that would be uncomfortable. Does anyone have experience with these?
I thought ideal for me might be something around 65 or 70 degrees apparent FOV and a focal length of around 25mm or 30mm would be good for my "impress the wife" need and maybe with a 2" diagonal. Is my thinking all wrong?
Your help would be appreciated.