Well, there's got to be a devil's advocate somewhere, so here I come. Michael, (mfoose), have you thought about the APM 30mm Ultra Flat Field? Don't let the specs fool you, the 38mm field stop isn't that far behind the 34mm ES 68 degree (38.6mm fs), so, although it will certainly have less True Field of View than the ES 30mm 82 degree, it weighs just under 20 ounces! That's a WHOLE lot less. Probably less than the old TV Widefield, and certainly a wider field, and I'd bet better transmission from the several decades-more-modern coatings. Don't know what scope you plan to use this in, but I am, personally, not interested in owning an eyepiece that weighs over 2 pounds. I simply am not interesting in re-balancing my scopes for such a beast. I like the view through other people's scopes, but I let them deal with the balance headaches -- I like looking at the heavens, and using more than one eyepiece to do so. But to each his own, for sure. I won't own and eyepiece that brings to the table its own set of mounting issues; I don't care what it does. Again, that's my feeling, and it's clearly the minority opinion for ES 30mm 82 degree and Nagler 31 owners, and perhaps if you're using a 30" dob, none of this matters, but I don't have one of those either (for the same basic reason, btw). Weight matters, and as that weight grows, well, so does the obscenity of using the thing. For some, there is no such thing as obscene regarding eyepieces and telescopes, but others have lower thresholds. Know thyself, my friend, before purchasing. Ownership isn't about use. I love looking at zebras, lions and tigers at the zoo. I will never have one in my backyard (at least I hope and pray not!) Buena suerte
The 30mm 82 degree ES eyepiece is no problem at all for my 15-inch Dob and only near the horizon for the 10-inch. I do use it on my 8-inch SCT, but it is too much eyepiece for my smaller scopes. It is a beast to be sure, and not one I would drop on my foot in the dark either but the views are wonderful through it when used on large telescopes.
Edited by Achernar, 19 April 2020 - 08:11 PM.