This is just kind of a curiosity, but I've been looking for a refractor in the 80mm range that is faster than my current Celestron ED80. I'm on a fairly strict budget so that pretty much rules out any Televue scope. I'm just wondering, if the Televue 76 is a doublet and the ES ED80 is a triplet, why is the Televue so much more expensive? This would be for imaging as I'm not much of a visual astronomer anymore. I know that the Televue is going to be much better mechanically, or at least it should be for that price. I'm wondering specifically about how the optics compare. Thanks for any and all feed back.