I have wrongfully posted this question in a different forum, and was encouraged to ask this question on this forum;
I am looking to buy a used 80mm LS AF, and I have discovered that there is (at least) two versions; one with a blue ring on the lens, one without. Is there any major difference, or any reason not to buy without the blue ring? I am shopping on a budget for now, and can live with some drawbacks until I can upgrade later on.
Thank you.