Please can you help me clear up something that is confusing me, based on what I've read online.
The lens in question is the Pan Cinor 17-85 f2. This is the one with the bolt on viewfinder that is attached to the side, and features a focusing aid in the viewfinder.
a) How many versions of this lens have there been?
Which ones feature a coincident image focusing aid, and which ones feature a split image? I did not realise that some feature one type, and some feature another. Is this true? How do you tell the difference?
I believe that there is also a 17-85 f3.8,which has no focusing aid in its viewfinder at all.
Your help would be much appreciated!!