Baader Planetarium 31mm Hyperion 非球面模組化 Hyperion 目鏡 - HYP-31

The 31mm focal length with that wide field makes sweeping the Milky Way feel effortless, and the aspheric design keeps stars sharp right to the edge. I’ve spent hours on the Moon and double stars without any of the usual edge distortion I’ve fought with in other eyepieces.

The aspheric glass really does clean up the edges—stars stay pin-sharp right to the field stop, which I wasn't expecting at this price. It's become my go-to for sweeping the Milky Way, and the modular barrel lets me pop it into my 2" diagonal without a single adapter.

I've spent hours on the Moon and M42 with this, and the field is so flat and sharp that stars stay pinpoints even near the edge—no more refocusing or constant fiddling. The modular twist-lock mechanism feels solid, and swapping the top section for my 2" adapter took seconds, which is a huge plus in