Before I bought my Nikon D70 I purchased a fairly thick paperback book that supposedly went into further detail of what was possible with this model. I read it cover to cover many times and, ultimately bought a D70. When this book was discussing megapixels (MP) it said the MP in the D70 were measured differently than the MP in the Nikon Coolpix cameras. I dont know how theyre measured or maybe have a different sensor. Anyway, it got me to thinking. How can Nikon remain competitive with its most popular DSLR at 6.1 MP against Canons Rebel XT advertising 8 MP? Or, Canons EOS 20D rated at 8.2? How can Nikon continue to sell its expensive D2Hs rated at 4.1 MP?