Underexposure is the greatest generator of noise
Taken with a Nikon D50 and AF Zoom-Nikkor 70-300mm f/4-5.6G lens
To deliberatly underexposed the photograph at the time of taking it and hoping to correct or alter the 'ev' value in RAW-post processing software is not a great plan. While you can compensate for under exposure with RAW, if you are talking about a couple of stops, you create a noise machine from your camera. Don't have the science but underexposure is the greatest generator of noise. 1/2 a stop you can get buy, 1 stop you will start seeing noise, > 1 stop forget about it.
Labels: AF Zoom-Nikkor 70-300mm f/4-5.6G, Landscape, Nikon D50, Photography