So just why do you want a clean sensor?
your sensor only takes minutes, just a fraction of the time you spend removing
sensor dust in post processing. Having a dust free sensor provides you with the
sharpest possible image that your sensor and lens combination can capture. If there
is dust on your sensor, it is degrading the quality of your image even if you
can’t see the hard specs. Dust always works as a diffuser and softens an area
of your image. In certain circumstances, it will even leave a dark speck in
your image. Content Aware Fill works wonders, but it takes time and still isn’t
as sharp as if you would have had a dust free sensor to begin with.