BirdForum is the net's largest birding community dedicated to wild birds and birding, and is absolutely FREE!

Register for an account to take part in lively discussions in the forum, post your pictures in the gallery and more.

Reply to thread

Message: <blockquote data-quote="mannukiddo" data-source="post: 1556381" data-attributes="member: 68987">I got the same response from Charles regarding the hazy bottom edges that I am seeing in my Gen 1 ZEN EDs. I agree with EDZ that this explanation does not really explain the ghosting phenomena that I am seeing. Now I have another wide angle bin i.e. the Celestron Ultima DX 8X32. It has a FOV of about 426 feet and has significant field of curvature and it is by no means an expensive wide angle binocular. But I do not see this veiling/hazy bottom edges problem in it. In fact the edges of the Celestron are purely a field of curvature as they do reach focus if one tries to focus, which is not the case with the Zen Ray ED as the edges never reach focus.In the original thread started by me here<a href="http://birdforum.net/showthread.php?t=148726" target="_blank">http://birdforum.net/showthread.php?t=148726</a>Henry suggested to look at the bottom of the exit pupil after moving my eyes a foot or two back from from the eyepieces. I saw exactly what he described as "a dead ringer for the effect caused by a reflection at the edge of the exit pupil (actually formed at the edge of the objective or the focusing element)". It is a bright rim at the bottom of the exit pupil. This is the cause of the hazy arcs and I confirmed it yesterday in the setting evening sun. Looks like there is not much one can do about this problem and even sending my bin back to Zen Ray may not really solve this problem. However I am surprised that non of the early reviewers saw this problem though Kevin Purcell made a brief hint of some stray lighting issue in his multi bin shootout. This stray light issue in my opinion can cause quite an annoyance while on the field and I really wonder how it was missed by almost everyone here. Looks like maybe, I am too finicky or my eyes are a touch too sensitive or I was expecting too much after the glowing reviews this bin has got everywhere <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />. But If Celestron could do it in their cheap porro prism Ultima, I thought Zen Ray should have been able to do it which otherwise is a pretty fine binocular.Regards,Mayur</blockquote>

Verification