I searched and I couldn’t find a direct discussion of this in the past. I’m buying new NODs this fall. I have experience with Carson glass but none with RPO, and minimal opportunity in my area to sample before buying. Some reviewers make a big deal about increased lens flare or the rainbow effect. So is there anyone here who regrets buying RPO lenses for their NV and wishes they had stuck with Carson or something else? Or is RPO the future?