can anyone has a sample pic of a 10mb and a 6mb of same pic?

Question

i had to decide d40 or d40x, hopefully that help.

which might look better in a 4x6 size?

Answer 1

At 4x6 the difference should be undetectable to the human eye. At 16x20 you will probably see a difference. Other factors would be the ISO used and the lens and the f-stop.

IMO you should try both cameras at a real camera store using the same lens, f-stop and ISO on your subject and then print the results. Then crop out a small section and zoom in on it or examine it with a 10x photo loupe.

Check the article "The Pros & Cons of Pixel Packing" in the Nov. 2007 issue of Shutterbug Magazine (shutterbug.com). Although its a non-scientific test comparing high megapixel digicams to lower megapixel DSLR's it may be useful.

Reading a side by side comparison of the cameras at dpreviews.com would also help with your decision. Shutterbug should also have reviews/comparisons of both cameras.

Answer 2

In 4 x 6" size, you won't be able to tell a difference. In fact, you won't be able to see the difference at an 8 x 10" size.

At about 13" x 19", you *might* see a difference, but good printer drivers and proper tweaking of the 6mp image would make in indistinguishable as well. (this is why I recommend qimage for printing btw, because it's software routines allow a user to print 6mp images very well at large sizes. http://www.ddisoftware.com/qimage )

Want to see how minimal the 10mp vs. 6mp difference is?

Go into Photoshop and click on New. Make an image that is 3872 x 2592 is pixel dimension. Make it so it's black in color. Now click on New again, but make an image that is 3008 x 2000 and make it white. Now select the second image, copy it, then paste it onto the first image.

The difference between 10mp and 6 megapixels is the border you now see. In other words, it's just a marginal increase in resolution, which you won't see in print sizes commonly used for desktop printing (13" x 19" and below). When you look at the same image on a computer (at 10mp vs. 6mp), it's just going to be slightly bigger.

The only question then becomes: do you want to spend that $100 more on the camera body or on an accessory for the camera? You'd be better off spending the $100 on a camera workshop, truth be told.

Answer 3

You will also begin to see the difference if you crop your pictures. Having extra pixels will keep that crop better.