> FX allows 60 years worth of lenses to be used that way they were designed
Does it matter? I commonly use a 35/f1.4 as a normal lens instead of a 50/f1.4. I seriously doubt that the lens cares, and probably neither does Nikon. Nor do I.
It's not really true, anyway. Many of the designs are actually visibly dated on the denser sensors, which is where most CA crops up, and other various optical evils appear - precisely where their designers never intended that they go.
And I know this is mostly about wide angle, but in the telephoto and macro areas, the lenses often do NOT work all that much as they were intended. I'm thinking mostly of TCs and extension tubes, where I am in the process of collecting two sets of tubes (one for AF and one for MF), and at least two and potentially even three sets of TCs (Nikkor AFS lenses, Sigma HSM lenses, and potentially something for AIS monsters).
_____ Brian... a bicoastal Nikonian and Team Member
My gallery is online. Comments and critique welcomed any time!