Which means that my painting is acceptable when viewed from at least 5 ft away. For some reason I had totally forgotten my previous experience with Interlux Brightside and that I had found Pettit Semi gloss more forgiving. Well I have now relearned this the hard way. I found getting the right mix of paint and thinner (333) difficult to achieve and ended up with some areas with roller marks on the ceiling. I will just have to keep the lights dimmed.