Remove noise by shooting at a lower ISO (tripod) or get faster lenses or a camera that shoots high ISO better lol
Noise ninja and lightroom is okay but when things are horribly noisy ie. pushing under exposed images you are pretty much fucked.
Dust spot removal is just spot healing and clone healing, nothing hard about it.
The best way to do this is.... *drum roll*Open your image in photoshop.
Create a new levels adjustment layer (found in the layers palette) and drop the mid tones slider down 20-30 points.
Go back to your background layer and start healing and cloning. The purpose of the levels is that it will make the spots far more obvious.
When you are finished cloning and healing, delete the levels adjustment layer.
By far the easiest way to see and remove dust spots (other than getting your camera cleaned and being careful when you change lenses

)
Oh.. and I can't stress enough how bloody important it is to shoot raw. JPEG should never be an option. It shouldn't even be in Digital SLR cameras anymore.
This post was edited by lithfkn on Aug 12 2011 02:14am