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Message: <blockquote data-quote="FrankD" data-source="post: 3326870" data-attributes="member: 18544">Clive,Those are some great ideas. It would be nice if we could narrow down the source of various internal reflections and then see how addressing those reflections specifically affects image quality.Some of the others brought up an interesting point though, several binoculars that are very highly regarded instruments can display poor internal reflection performance and yet still provide excellent overall image quality. If notable internal reflections are something to be avoided then how can this be the case?The answer may be what James and others mentioned...that if it is significantly outside of the pupil then it doesn't impact performance.Inquisitor,I don't want to necessarily chime in with my opinion of the the internal reflection issue with the models I listed. I will, I promise you that, but my intention with posting the pics, and this thread in general, was to get an idea of how different internal reflections can affect the binocular's performance in different ways. Based on previous comments it would seem that some internal reflections are "ok" while others can seriously degrade the image quality under certain conditions.Is it that simple or is there more to it than that. Is the way that we hold and use the binocular also a variable in this equation?Chosun,I will go check out the link you provided now.Thank you.</blockquote>