نقل قول:
You must have noticed that there are indeed a lot of similarities between the D3X and D3, but the main reason people pay the high cost for the D3X is to have 24M pixels, approximately twice as many as on the D3. To find out how 24MP differs from 12, I have carried out a variety of side-by-side A/B comparisons between the D3/D700 and D3X with several different lenses under different conditions, each time using the same lens at the same aperture on both bodies. In one test case I captured a flower macro and printed that to 8.5×11 inches, which is my personal standard print size. I used the 200mm/f4 AF-D macro lens that has a tripod collar mounted on a tripod and just swap camera bodies such that there are negligible differences between the two captures. In this case even the D700 image needed to be down-sampled a bit to fit 8.5×11 at 300 dpi, and I have a hard time telling the difference between the two prints.
In another case I captured a scene with some fine details with the 50mm/f1.4 AF-S lens at f8 on both cameras. I upsized both to 16×24 inch and cropped out a small 4×6-inch section with fine details (4×6 is 1/16 of the entire 16×24 print). I showed those 4×6 prints to some friends. While the difference is still somewhat subtle, upon careful inspection, they could see the clearer fine prints and additional details from the wood grain from the 24MP original. However, they were viewing those small 4×6 prints from the usual viewing distance, about 12 inches. Few would inspect 16×24 prints from such a close distance. From a more normal viewing distance for 16×24 prints, it is going to be hard to detect any difference from the two cameras.