>>I'm a novice. What do you mean by "higher >pixel >>density"? Both the D7100 and the D600 are 24 >Megapixel >>cameras. Please explain. And thanks in advance. > >One easy way to understand it is to imagine 24 grapes evenly >distributed on a small saucer (D7100). Now picture the same >24 grapes evenly distributed on a dinner plate (D600). There >is a lot more space around the grapes on the bigger plate, >therefore, less pixel density. > I'm sure we have an engineer out there ready to jump in a >give us a better answer... lol >
actually, the analogy would be 24 small grapes on a small saucer. then 24 larger grapes that covers the dinner plate. the 24 larger grapes will produce more juice than the 24 smaller grapes.
same way, the 24 mp on an FX sensor - each pixel is larger than the 24 mp on a DX sensor. Larger pixels have better photo-sensitivity (esp low light).
that's why the MP war is a myth. packing more MP into the same sized sensor is not always the best thing. Now, coincidentally (somewhat), camera companies are improving the actual sensor used with each generation, to make up for cramming smaller sensors in.
oh sorry - you guys were talking about pixel density wrt actual image size...sorry, don't know how to analogize it better for that case...