Agree that the Delos are better, but the small size and weight of the Naglers is still a factor for some. All but one of my eyepieces weigh between 150g and 285g, which means they are light enough to use in all my scopes without balance problems. The 12mm eye relief isn't an issue for me, although for serious observing over extended periods (e.g. a week at Astrofest) something with long eye relief would be more relaxing on the eyes. So I might look at replacing the 14mm Delos I sold, or possibly get the 12mm, since 12-14mm seems to be the sweet spot for a lot of deep sky objects in my Newt.
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