Explore Scientific 10mm 52° アルゴン充填防水接眼レンズ - 1.25インチ - EPWP5210-01

The argon purging really gives me peace of mind when observing during humid nights, and the 52° field is wide enough to keep planets centered easily. Jupiter’s cloud bands snapped into sharp focus with no annoying glare.

The eye relief on this 10mm is generous enough that I can see the full field without smudging the lens, even with glasses on. Jupiter's bands and the Cassini division in Saturn's rings were crisp and sharp all the way to the edge.

I was skeptical about the argon purging, but after a humid night of observing Jupiter, the interior stayed completely fog-free—a big plus for my damp backyard. The eye relief is generous enough to use with glasses, and the view of the Orion Nebula through this eyepiece was sharp and bright.