My friend(s) just received his/her Ethos 3.7mm with a 110º apparent field of view doing side-by-side A/B Test. We are going to compared with the expensive APM80/480 versus cheap Equinox 80/500.
We are going to focus on some leaves at the top of the mountain that APM is totally worth for that. Beside the colour resolution of the APM is much more sharper than Equinox and also it can't see any observable violet edge on APM.
Finally, we can concluded that the price is one of the factor to control the quality of telescope.
During the test, we found that other "Ethos" 10mm is still a little bit colour gradient change from centre to edge, those green colour becomes pale yellowish-green. Maybe we need to re-test again