This will
probably stir up some
controversy, but here goes.
I spent the better part of
today testing these 2 cameras. I
was somewhat shocked, so I did
it again indoors. Same thing. Now we
await the REAL scientific tests
like dpreview and DXO. Using an
ISO 12233 chart as well as a
Macbeth Color Checker I came up
with the following results. I
used the same lens (Nikon 24-70)
on both cameras and
adjusted the focal length for
the same field of view (no easy
task with the D7000 showing 100%
in the viewfinder and my D700
only 96%). All shots were done
in raw and converted using Nikon ViewNX 2.0.2. (I still am an
Adobe Camera Raw fan, but I have
to wait). The photos were
compared with no sharpening and
again with USM at .4 at 100% and
0.
My findings:
The D7000
really needs to be compared
carefully with the D700. The
noise suppression is a good
(maybe a little more) 3/4 stop
better at ISO 3200 with the D700 . I did
not test 6400 and higher because
I never go there. The resolution
is VERY slightly superior at all
ISOs from 200 to 3200. Again, I
did not test 6400 and higher.
1- The D7000 has a little
better resolution then the D700
(expected if PRINT size stays
equal).
2- The noise level of the
D7000 at ISO 3200 was close, but
not equal, to the
D700 WHEN BOTH FILES WERE MADE
THE SAME SIZE (either by upresing the D700 or down resing
the D7000 in PS CS5. Comparing
the two totally different file
sizes at 200% gave a solid 1 stop edge
to the D700.
But we
DON'T print that way. We
print a certain size.
The same
scene printed at 16 x 24 inches
would display about 3/4 stop less noise with the
D700.
3- Dynamic range is more
difficult to measure. First you
need two files that have
identical levels and curves.
This is very difficult to do.
Based on my attempting to
"stretch" the DR in PS CS5, I
would say the D7000 might well
be equal to, or better than, the D700. This awaits real
tests.
Update:
DXOMark
gives the D7000 almost 2 stop
greater dynamic range - but only
from ISO 100 and fading to equal
a little after ISO 400..
Here are the images. The
width of the chroma noise files
are severely cropped to 752
pixels wide for all 10 files.
They were equalized so they will
all PRINT the same size. The
resolution files were cropped
down to 2516 pixels and
equalized. Remember, these files
were made for comparison
purposes only.
Do NOT make any
other generalizations, such as
actual resolution in line pairs.
A solid tripod was used on all
shots. Timer delayed shutter
release. Cloudy day. Charts hung
on garage door. The lens used on
all images was the Nikon f2.8
24-70 at f8 and various shutter
speeds. Only the ISO was
changed. All other variables
were kept constant.
Here is an original image of
the full scene. The shadow is
from the plaster overhang above
the garage door. Caution: Large
file.

Resolution
comparisons: (click on
each image for a full scale
version)
Conclusion: The 16mp D7000
produced a VERY slight increase in resolution to
the 12mp D700 at all ISOs. All
information is copyright
protected, but feel free to link
to this page. Click on each
image to make it larger, then
click again for an even larger
version.
D7000 at ISO 3200
D700 at ISO 3200
D7000 at ISO 1600
D700 at ISO 1600
D7000 at ISO 800 
D700 at ISO 800
D7000 at ISO 400
D700 at ISO 400
D7000 at ISO 200
D700 at ISO 200
Chroma noise comparisons:
(click on each image to see a
full scale version)
Conclusion: The D7000 produced
approximately 3/4 stops
more noise than the D700 at ISOs
from 200 to 3200
when
equalized for print size.
All files started as raw files
with noise reduction and
sharpening turned off. They were
converted using Nikon ViewNX
2.0.2. All information is
copyright protected, but feel
free to link to this page.
D7000
chroma noise at ISO 3200
D700
chroma noise at ISO 3200
D7000 chroma noise at ISO
1600
D700 chroma noise at ISO 1600
D7000 chroma noise at ISO 800
D700 chroma noise at ISO 800
D7000 chroma noise at ISO 400
D700 chroma noise at ISO 400
D7000 chroma noise at ISO 200
D700 chroma
noise at ISO 200
CONCLUSION:
The D7000 is the best DX camera
on the market today. It has a
few advantages over my D700 as
it is smaller, lighter, and can
use smaller and lighter DX
lenses. My favorites lenses at
this time are the Nikon 10-24mm,
Nikon 16-84, Nikon 70-300, and
Nikon 300 (FX). With a 100%
viewfinder you are no longer
guessing at coverage. The
viewfinder appears just as big
and bright as my D700. That's
nice. It also uses a true 14
bit!
Is
it a better camera than the
D700? No. However it might well
be a better camera for some
users! I decided to stick with
the D7000 for two main reasons -
smaller and lighter using
smaller and lighter glass.
I
also appreciate the increased
dynamic range as I do a lot of
post processing and tend to
really push the raw files pretty
hard.