Yhave to open the pictures and compare them. The thumbnails that were on the main page were not cropped, rather they were resampled. To show which has more reach, the thumbnails should have been cropped.
Prove it to yourself. Open up both pictures and crop out the same area on both. I cropped out the white box above the stairs. Results
5700 - 98X88 pixels
2100 - 86X78 pixels
That gives the 5700 a 10-15% edge over the C2100 for reach. Not only that, you get a lot more coverage of the surrounding to boot.
Prove it to yourself. Open up both pictures and crop out the same area on both. I cropped out the white box above the stairs. Results
5700 - 98X88 pixels
2100 - 86X78 pixels
That gives the 5700 a 10-15% edge over the C2100 for reach. Not only that, you get a lot more coverage of the surrounding to boot.
--For the money the C2100 is the better deal in my opinion.
But give credit where credit is due.
The 5700 has the longer reach. The lens may not indicate that, but
the end result clearly shows that the 5700 has more reach.
Ray Medford
I would question the point made above about the 5700 having a
longer reach. Unless I am looking at the pictures incorrectly then
surely the shrub in the 2100 shot at full zoom is noticeably larger
than the one in the 5700. Add to that the fact that the steps on
the left and the mail box in the Nikon picture are missing from the
2100 shot, in other words a smaller picture with larger components,
in other words, more reach!