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I just recently purchased a 15mm GSO Superview from Bintel as a lightweight EP for my travel scope. They have a 68deg AFOV and are $50 or $60 depending on FL, as against $40 for the plossls.
It is not a bad EP, in my little 8" f4 traveller it is hard to distinguish quality of view from a 13mm Ethos, but I have yet to try it under really good conditions. It is certainly much better than equivalent plossls I have tried in terms of eye relief and ease of use.
Malcolm
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