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Message: <blockquote data-quote="Kevin Conville" data-source="post: 1139969" data-attributes="member: 63161">Elk-I didn't say the effects of added ED elements couldn't be discerned, I said (essentially) that they don't mean much in an 8x32 bino. And as you also mention, are very much target dependent. Bigger lenses and greater magnification exacerbate chroma and it's side effects. And just what is the big revelation about ED optics in binos anyway? Big deal. Low dispersion lenses have been around for a long time and ED, LD, HD, ULD glass was created to be a cost effective and more durable alternative to flourite lenses. Flourite has had durability issues and some early telescopes used them in the outermost location of the objective set. They've learned since. They absorb water and can crack from large temperature variations. The top makers haven't been tripping over themselves to incorporate these low dispersion glass elements until recently, though adding them in a binocular format doesn't add much cost. In this case, the perceived "need" is following marketing to a degree as makers try to distinguish their product.I have an ED spotting scope and it's the only way to go. I've also had apochromatic refractor telescopes and they also are the way to go vs an achromatic, for a superior image. But those are telescopes.Kind of like the sound of a falling tree in the woods, if you don't see it.... is it there?These arguments are pretty silly and I only chimed in 'cause I like small Trinovids. If they have too much distortion for you, that's fine. If someone else sees color on a raven's outline, they'll want something else maybe. We're lucky to have so many good choices these days.</blockquote>

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