Maybe I just need to get used to it and learn to adapt but the Moon was extremely bright through a friend's refractor. Do I need to suck it up and learn to adapt or are there filters meant for this? Was it because he had a very low end scope? Maybe other conditions because of the eclipse? We had used the scope 3 nights in a row. The 3rd night being the night of the recent total lunar eclipse. I would just like observe for longer periods of time through the eyepiece and not have to look away because it gets blinding . Maybe I'm just staring too long?