Hi folks - been a while since i had the time to participate in online discussions, but I'm having an issue and thought that the good folk here might be the best source of knowledge to ask about it.

I seem to be experiencing some noise in my landscape shots, even when shot at ISO 400 and quite quick (for landscape) shutter speeds.

I shoot with a Canon 7D, and am wondering 2 questions:

1 - is it possible to damage your sensor so that noise increases, and if so can it be fixed?
and;

2 - what is the best noise reduction software that isn't too expensive?

Look forward to your thoughts!!

Glen