My understanding:
A 40mp sensor (for example) produces information for 10mp points of capture due to the fact that the Bayer filter takes groups of 4 input sites (GRGB) to produce a single point of capture record.
If we have a full frame sensor, that would produce (@2:3) a capture of aprox. 2582p x 3873p
Assuming
1. that the printer & software editors output 1 capture datum to 1 dot of print (&I understand that this is not necessarily the case)
-and-
2. that we output to the printer at 360 dots/in
We would have a print of aprox. 7 x 11 inches.
So is the up & down sizing so good that I can produce images of just about any size I want? What';s the practical limit on the up side?
-Lew Schwartz