Ethos 21mm 100° Eyepiece

The field stop is razor-sharp all the way to the edge, which makes scanning the Milky Way feel completely immersive. I can see the whole Veil Nebula complex without moving the scope, and the eye relief is generous enough to work with glasses.

Spent a whole night sweeping through star clusters, and the 100° field is so immersive I kept forgetting to nudge the scope. The edge-to-edge sharpness holds up better than my old 82° eyepiece, which was a pleasant surprise.

The 100-degree apparent field is just staggering; I can pan across the Milky Way without feeling like I'm looking through a soda straw. Even with my f/5 dob, the stars are pinpoint sharp right to the edge of the view. It's made deep-sky observing feel completely immersive.