I have three Vivitar Series 1 lenses. The first a Mint 90-180 Flat Field, a 28-90 2.8-3.5 and a 70-210 3.5. The first I've used with great results to me with the limited experience that I have. The other two aren't tested enough to form an opinion. If someone has a knowledgable opinion about one, or all of these lenses I would appreciate some feedback. They will be used on my MX and Me-Super.
Always appreciative; Bruce.
