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Message: <blockquote data-quote="Binastro" data-source="post: 3653174" data-attributes="member: 111403">At night, the larger the exit pupil, the worse the star images are for me.But the images are brighter with larger exit pupils.People with small amounts of astigmatism do better with smaller exit pupils down to 2mm or 1mm or less if their eyes are free of other imperfections. Usually using telescopes for very small exit pupils.Often correcting glasses don't need to be used giving larger fields with small eye relief instruments.</blockquote>