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I can see how people fall in love with the ETHOS series. Excellent optically across a 100 deg AFOV is going to get a lot of votes from a lot of people. It's just not quite my thing. As Matt mentioned there is something about seeing a sharp field stop and I get that with high quality ~70 deg AFOV eyepieces. It doesn't hit me in the face with the ETHOS, I have to go looking for the field stop. In addition my preference is to observe with glasses on which rules out the ETHOS. I could observe without them but I find it a pain to take them off at the eyepiece, particularly when high up a ladder, and then putting them on again to look at the Sky naked eye, to use charts, to look at the Argo Navis; etc etc.
The long eye relief ~70 deg eyepieces like Delos, Pentax XW, Vixen LVW and Denkmeier suit me ideally, but I can't dispute the ETHOS are exceptional performers.
Cheers,
John B
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