Originally posted by tibbitts I don't understand your question, but if someone posted with an offer to buy, the post would probably be removed, since sales are restricted to other areas of the site. Also you may not have donated sufficiently to be allow to sell on the forum.
I don't think it was an offer to buy the lens. It was a hypothetical question is someone willing to buy this (kind of) lens, which is rare (according to bdimitrov) and cost more than 400 us$, for 145 us$ but with a little "ding" on the rear lens. This, in my opinion, is a little self-psychological barrier which depends from person to person. Now, when I found out that it doesn't impact in image quality, I would do it again.
Originally posted by Jacquot Looks like dust to me too. Can you try it on a different body, even film?
It seems it was dust. I shot some pictures again (after dust cleaning operation) and it was ok. And K-5 II is the only body I have.