BobinKy
(Carpal Tunnel)
07/01/09 08:31 PM
Re: ED glass in binoculars

Brock...

My experience agrees with your report. I have had the opportunity to compare ED/nonED versions of two different models and, in both comparisons, the ED versions showed better views than their nonED brothers. The two pairs are the Swift Audubon 820 8.5x44 Porro CF ED and nonED versions, and the Pentax DCF 10x50 Roof CF ED and SP (nonED) versions. Now, in both comparisons, there may be more optical features at work than ED glass, as both you and EdZ discuss. But, for me, the end result in both comparisons was the ED versions produced more contrast, better color saturation, no CA when viewing a bird against a bright sky, no CA when viewing the Moon, and . . . well, just a better observing experience.

In my opinion, if an observer can afford model versions with ED glass, I recommend they go ED. There is a difference, particularly during daytime viewing.

However, as with all binocular purchases, only the individual observer can make the decision as to whether the ED experience is worth the ED price.



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