Rob-F
Likes Leicas
I've been doing some homework. It looks like the first 28/2.8 AF, the one with the thin metal focus ring, was a five-element design taken from the 28 Series E. As such, it is not thought to be a very good lens. Then the AF-D is supposed to be a redesigned, improved, six element design. That one has the two-row rubber focus ring.
So here's my question. I've seen 28/2.8 examples that had the newer style cosmetics with the rubber focus ring, but are not marked "D." Was the optical upgrade done at the time of the cosmetic change, before the "D" was added? Or was it not upgraded optically until the "D" version?
So here's my question. I've seen 28/2.8 examples that had the newer style cosmetics with the rubber focus ring, but are not marked "D." Was the optical upgrade done at the time of the cosmetic change, before the "D" was added? Or was it not upgraded optically until the "D" version?