I recently posted some observations on the Flame nebula in Orion. My report described a failed attempt to see the Flame using an OIII filter then success with an H-Beta filter later on. The main difference was a larger exit pupil when using the H-Beta. The Flame nebula is a reflection nebula and should therefore be more prominent without a filter, as a generalisation. My observations gained some attention as they didn't seem to corrolate with expected results. Last night, I carried out some test