72° ED系列 8.5mm 防水目鏡

Swapping between Jupiter and the Orion Nebula, this 8.5mm keeps both sharp and bright. The 72 degree field makes it feel much more immersive than my old Plossl.

The eye relief on this 8.5mm is generous enough that I can see the full field without my glasses smudging, and the 72-degree view makes Jupiter's bands feel spacious instead of cramped. It's sharp right to the edge on my Dobsonian.

I was worried about eye relief with such a short focal length, but the generous field of view makes finding and tracking planets effortless. The 72 degree apparent field really does make those small targets feel more immersive.