24 MPixels was the standard I defined as my desire in a digital camera in 2001, before I even bought my first digital camera, because I wanted that level of capability based on my calculations of a good 16x20 photo as I defined above. Since then, I've owned .7, 2, 3, 4, 5, 6, 7.5, 10, 12, 16, 18, 20, and now 24 mpixel cameras. I've produced probably 12,000 photographic prints in sizes from 1x1.5 inch to 30x45 inch with them. None of the lower resolution cameras dissuaded me of the need for 24Mpixel resolution: It's obviously easier to do the larger sizes in that range with more pixels than with less. I've now got two current Leica cameras ... M-D and SL ... and their 24 mpixel sensors make photographs that finally satisfy me, much as I expected they would.
G