I found a like new 2.8D at a reasonable price but when I went to pick it up I could not attach it to my body. Any reason for this? The bayonet design was slightly different than my 85 but so is the 17-55 etc.
I was in a rush so there's a slight possibility of misaligning the lens when attempting to attach it to the body. The lens appeared to be in "like new" condition and when inspecting the mount I did not notice any damage. I guess there still is a possibility of the mount being damaged.
Online research confirmed compatibility of the lens/body. I'll have to return and check it more carefully.
Sorry everyone. In my haste I fail to see the "line" on the lens signifying the correct alignment marker for mounting the this particular lens. When I picked up the lens I saw a white dot (there are 3) on the lens and assumed it was the marker for alignment since the 70-300 has a dot used for alignment. Happily all is well and the 80-200 is a wonderful find since the previous owner took very good care of it.