Some finicky observers have complained of image softness when using the Meade MA eyepieces once the object is out of the "soft spot"
I have to say I have personally no complaints-these eyepieces are good as far as I'm concerned. On the other hand I hardly ever observe through them except to star align-usually I have the webcam plugged in most of the session.
My personal view is that a 4mm may be more magnification than you can use on 90 % of the nights.
Having said that I know of some guy who uses a 4mm TeleVue Radian and is very happy.
My own Andrews 4mm Ploessl developed some blemishes a few months after I purchased it, and I have rever replaced it-just didnt find I used it enough. (But that may be because I much prefer observing deepspace objects at low and medium power to cranking it up for planets and the moon.)
I have had no problem with the Andrews 10mm or 25mm Ploessls. In fact they look identical to the eyepiece that Celestron ships with its C8N-am sure they are made in the same factory.
now that you are an ETX owner, you may want to consider joining the yahoo ETX70 AT user group.
http://groups.yahoo.com/group/ETX-70AT/?yguid=150343216
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