>>3130009>There is nothing to "optimize" for retard. With the right adapter and if flange focal distance isn't a problem the lenses will perform the same on every fucking camera it can fit on.This is not actually true, especially when talking about native lenses designed for digital cameras vs. vintage film camera lenses.
One way that a digital sensor is different from a piece of film is that the photosites on a sensor have depth. Depending on the sensor technology, this is mitigated a bit by microlenses or a backside illuminated design, but in general, sensors work better when the light rays are hitting them going straight down rather than at an angle. Silver grains, on the other hand, are all slopped together right there on the surface of the film and they react identically regardless of the angle a photon comes in at.
The upshot of this is, lenses designed with digital sensors in mind tend to be designed with that in mind--I.e., they're optically designed corral the light rays into straight lines heading down into the photosites rather than being designed to hit a piece of film at whatever angle is convenient for them.
It's not generally a BIG difference--and likely not one that's even noticeable, beyond a little extra vignetting on digital that might even be corrected automatically in software--but it *is* a difference.
