中古 - Astro-Tech 4.8mm XWA FMC アイピース

I was a little nervous buying used, but this eyepiece arrived in great shape and the 2-inch barrel fits my focuser without any adapters needed. The 100-degree field is a whole different experience — it feels like you're floating in space rather than looking through a tube. Waterproofing is a nice bo

The 100-degree field of view is genuinely immersive, even in this used copy. I popped it in my Dobsonian to check Jupiter and the edges stayed sharp, which surprised me. Only minor scuffs on the barrel, but the optics are flawless.

Even used, the coatings are pristine and the eye relief is surprisingly comfortable for a 4.8mm. It fits both my focusers perfectly and the view snaps right into focus.