Kim, sorry I missed this question until now. I own all three Celestron E-lux 2" eyepieces, and for Kellners, they are remarkably good low-power eyepieces. The FOV isn't the greatest, but then again, it's pretty good for a 3-element eyepiece, the corrections are adequate, and the price can't be beat! I got all three of mine, BN, for $105 with free shipping. That's real value. I had bought them as star-party fodder, not wanting to risk fingerprints or theft of my "good" 2" eyepieces, but I was pleasantly surprised at the quality and performance. An added bonus is that they don't weigh a ton, making it easier to keep a small or medium-sized scope in balance. I have heard that they are no longer in production, but can still be had from various vendors' stockpiles, on-line. So, my opinion is, yes, there are better 2" eyepieces, but only if you spend two or three times the money- or more. I'd keep it as a star-party "beater", or even as a finderscope eyepiece, which it would excell at if you added a reticle. (Dave Bernson can ignore the reticle advice, lol). On 8/12/10, Kim <kimharch@cut.net> wrote:

Question for anyone: What would be the optimal use for a Celestron 40mm E-lux 2” eyepiece? It’s an air-spaced fully multicoated 3-element design with a 50 degree FOV. While I’ve used it, I’m not sure that other eyepieces in my collection don’t serve me better. I always (well, nearly always) appreciate advice.