Erik van Straten
Veteran
It is not evenly covered across the lens, I would say in the centre it is at most and towards the sides it disappears, but in fact it is hard to see. I have other Elmars and a Hektor that show this phenomenon too. I don't know if "blooming" is the right word for it, I am not a native speaker of English. It has absolutely no effect on the transparency of the glass. It simply looks like a very thin coating with iridecent colors.
Erik.
Erik.