Heheheh. Sure, an actual AR coated lens has a very visible color cast when you look at the reflections in it. You’ll never mistake an uncoated one for a coated one or vice versa. Take a look at the OP in this thread for reference: P60 Kaidoman AR coated glass - Recommended! Pics inside
IIRC the trick is certainly to tilt the lens and look at reflections at a steep angle. Some AR coated lenses will be purple, some green.
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I don’t know if it is my bad old eyes or if I got taken by KD but I’m not sure I see any tint. It seems like it has a coating of something and at a certain angle I think I see green, But….
It does soften the edge of the hot spot in SMO reflector lights, not totally but you can see the difference.