Hi all, I'm writing from Italy. I'd like to ask you (if you know how) is possible to know if a lens (made from Zeiss Jena) is multicoated or not. My new one is a flektogon 50/4 for pentacon six, in a completly black version. There's no written MC on the top, but if you look at through the lens with a lamp behind you can see some different reflexes of different colours. That's could mean it's an MC lens? Someone on the WEB told me that some of these lenses were made in an MC version but without the label MC written on. Thank you in advance for your information Eugenio.