Photoclubalpha

received earlier this week an add on lens. it's an olympus A-200 and was advertised as "never been used" and "still in box" well it's in not horrible shape except I think someone damaged the rear element from cleaning. (also it definatly has been used, quite a bit judging by the threads).

here is the rear element


The front element is perfect


Is there any help for that rear element ? I tried a lens pen on it and none of the marks moved. I think it may have been cleaned with something that etched the coating. but it's hard to tell.

So?
sent it back to the seller?
If you are still interested, I have one for sale -I got this one and the wide angle, that works perfectly on the Dimage A2, but I don't use the tele, just the X0.8 wide.

Regards

The seller didn't want it back but refunded me ayway. I'll forgo trying this again and i'll just keep an eye out for a deal ona 135mm 2.8 or 100mm F2