I have an Orion XT-10 250mm f/4.8. For overview I want to use an eyepiece with a field as large as possible. I saw
this 38mm which is actually unsuitable for normal observing as the exit pupil is too large: 38 / 4.8 = 8mm but it boasts a field of over 2 degrees which is a nice overview. For $84 it is not bad.
Does somebody have experience with such long eyepieces on a short Newton ?