- said:
No, but it can only "capture" that many pixels per inch in one direction, so
3200 is as high as you can go before it uses the software to rez up. 6400
is just marketing fluff.
In terms of being able to resolve image information in that axis, the
6400 may be hyperbole since the optics simply are not up to the job.
However there are certainly 6400 real and uninterpolated samples in that
direction and consequently it is a bit more than "just marketing fluff".
When the sensor cannot actually resolve that sampling density, the
effect of additional samples is to reduce the noise of the resulting
scan - in much the same way as multiscanning does (albeit without
coincident samples or any computation, resulting in an oversized file
and inefficient storage).
Since AS specifically asked about multisampling in a previous post in
this thread, that benefit is a significant one over the pat answer that
you provided.