Awesome eyepiece - Explore Scientific 82 Degree Series 30mm Argon-Purged Waterproof Eyepiece

This is a really, really nice eyepiece. The reviews across the internet are accurate on this one...it is sharp out to the edges, has a nice widefield view, good eye-relief, and it is extremely well built - albeit huge.

I did not notice any excessive edge-of-field brightness. It is definitely the nicest eyepiece in my collection which consists of Celestron Axiom LX and Lumina pieces, and some Russell Optics Koenigs. I like this one best, followed by my 23MM Axiom LX (which sadly is no longer made), and lastly my Lumina (19).