[baileys2611 (Simon Bailey)]

Does anyone know why I would not be getting focus in my 80mm william optics refractor if I put the eyepiece directly in the end of the scope instead of using a 90 degree upright, or a 45 degree prism?

I have tried a few times with different eyepieces to get the scope to focus and can't get near it. Is this because the scope is meant for photography instead of visual observing?