Sharpening is not as related to the pixel density as it is the strength of the Anti-Aliasing filter. Sharpening is a process of compensating for the filter's negative influence on perceived sharpness. Additional sharpening is done for different output or crop operations.
St Petersburg Russia
|Leaving the office, Central London. by Edward48|
from Your City - Night Shift
|Running free by LassiM|
from My Best Photo of the Week
|Everyone's happy at Disney World! by Pixney|
from Disney World