There have already been numerous articles about cleaning the sensor inside a digial SLR. Now Thom Hogan has chipped in with his own personal guide for cleaning Nikon cameras with two relatively new commercial products:

“While Nikon Capture now has the ability to use a “dust reference” shot to remove dust from NEFs, this doesn’t help you much with JPEG images. The Capture Dust Off correction is done similar to cloning (i.e. copying neighboring data) but automatically. One problem is that this can sometimes obscure fine detail (cloud threads). Nor does the Capture dust reference photo idea work well in the kinds of environments I shoot in, where the dust accumulation on my CCD changes daily (I’d have to take several reference photos a day and then carefully track them, adding yet more complexity to my already complex workflow). Finally, Nikon Capture has an upper limit to the number of dust bunnies it can “erase,” and I’ve encountered plenty of situations where I could exceed those limits.”

Website: Thom Hogan - Cleaning your Sensor