Originally posted by Siegfried Marc,
In that sentence I was referring to Tokina AT-X AF270, Tokina AT-X AF280PRO, MC Helios 44K-4 (3 different copies from different sources with different backgrounds in their history), MC Helios 77K, Seikanon 28/2.8 macro (pk-A).
Ah, a bunch of odler third party MF lenses. That could be.
Quote: I have sold and don't have an access right now to DA50-200 and FA28-105, but I don't recall those copies to be able to go past infinity either.
50-200 definitely does. As others have pointed out, this is a deliberate design feature. Both to allow for some temperature variation, also to allow AF to have somewhere to "bracket". It's lenses that *lack* this feature that I would be suspicious of. In other words, a lens with this feature is better than one without.