Originally Posted by
FaintFuzzies
On the other hand, at GSSP 2009, five observers, including Jimi and I saw the difference between the ZAO-II, UO HD and Ethos (all 6mm) in my 22". The UO HD is between the ZAO-II and Ethos, but a little closer to the ZAO-II in light transmission and the ability to perceive additional detail. Jimi and I agreed that the difference between the ZAO-II and the Ethos is obvious. Lastly, one of the five was a beginner and even he saw the difference.
One of the object we were looking at was the triple galaxy system, NGC 6745 in Lyra.