After waiting for some clear weather here in the Pacific NW, I finally got to use my ETHOS eyepiece on my 12 SCT last nite looking at Mars and since the moon was about 50%, the moon also. Utterly fantastic! I think this is the only eyepiece that I have thats lived up to its advertisements. The moons craters and mountains were crisp and clear. I cant wait to try it on my TMB 105 (that is when the next clear nite is here...probably July 29th). Kudos to Tele Vue on this one!