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Message: <blockquote data-quote="Ries" data-source="post: 4059195" data-attributes="member: 135191">Old thread, but I rather surf on an old one than to clutter the forum with even more threads.Last few weeks I noticed with my Nikon mhg 8x42 internal reflections (flare? Two big light spots, red and green. And ghost? A tiny rainbow colored speck, each side gives the exact same effect in each eyepiece) when the sun is a bit sideways behind me. This was easily tracked down by coming from sunlight leaking by the sides of the eyecups.First, as the thread topic, I'm wondering if this has its own terminology? I read some threads and sometimes someone starts to speak of stray light or internal reflections from back/sideways leaking in besides the eyes, and others flip over talking about flare by stray light in the objectives giving internal reflections. That's where the flare discussions seem focused on. The nomenclature seems vague and ambiguous, or isn't it? I'm a newbie at the tech aspects of optics, trying to learn, and English isn't my main language so maybe I'm just missing nuances when people speak about flare? Secondly, I read many people use winged eyecups to keep stray light out from entering. That made me wonder if this phenomenon is something normally occurring and maybe even somewhat unavoidable? I never read about it in binocular reviews or read it mentioned much in bino talk nor do I remember noticing it before in my earlier Meostar. Is it something taken for granted or overlooked, or found not so important as other aspects and easily solved by winged eyecups? Seems strange to me such an added solution would be thought as normal, and an internal solution inside the bins wouldn't ?Hope you guys can help me develop my apprehension of all of this a bit, thank you!  Sorry if I'm asking for familiar or silly stuff, one doesn't know what one doesn't know, now does he (whaaaat?!) B <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" /></blockquote>

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