Bortle class seven, full Moon, 25° altitude, five minute exposures. Only mild gradient from moonlight, no coma and no halos. No need to refocus between filters. Nothing bad to say about this filter whatsoever. It works extremely well. The only thing bad is the hole in leaves in your pocket.
Firstly I live in Australia Delivery was lightning fast 7 days. Great service The Chroma filter is performing flawlessly. I only wish I could post you my first light image, it's pretty amazing, the filter is parfocal with my Astrodons which are in the wheel as well. I couldn't be happier with the goods and OPT