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The D200 |

The D100 weighed in at 700 grams, 1.5 pounds. While the D200 weighs 830 grams, 1.8 pounds. This is primarily due to the D200 being built stronger and having better seals against dust and moisture. The figure above shows the superior magnesium alloy body frame of the D200. Size is also close to the same. The D100's dimensions are 5.7 x 4.6 x 3.2 inches, while the D200's are 5.8 x 4.4 x 2.9 inches.
Sensors are nearly the same size in each camera, the D100 having a 23.7 x 15.6 CCD sensor, while the D200's is a 23.5 x 15.8 CCD sensor. However, the D100 is a 6.1 megapixel sensor, while the D200 is a 10.2 megapixel sensor. Large size images with the D100 are 3008 x 2000 pixels, while the D200 delivers 3872 x 2592 pixels.
Autofocus is accomplished with the Multi-Cam 900, 5-area TTL focus system on the D100. The D200 uses the Multi-Cam 1000 11/7- area TTL focus system.
The D200 uses the improved 3D Color Matrix Metering II, the D100 uses the older version.
Basic ISO sensitivity on the D100 is 200 to 1600, while with the D200 it's 100 to 1600.
Shutter speed on the D100 is 30 to 1/4000 seconds,with the D200's being 30 to 1/8000 seconds, with flash Sync speed being 1/180 on the D100 and 1/250 on the D200.
Continuous shooting on the D100 is 3 frames per second, while the D200 offers up to 5 frames per second.
The D200's LCD monitor is larger at 2.5 inches than the D100's 1.8 inches. The top LCD display is also larger on the D200.
The biggest difference between the D100 and D200, however, is the variey of shooting styles and custom settings between the two cameras, and how they work together. Too numerous to list here, but they are significant. Learning and putting to work the D200's numerous settings and possible combinations is almost overwhelming. As I commented to a friend, it's really like starting over from scratch to learn the digital SLR system - there's that much difference from the D100 to the D200.
Now that I have the D200, will I give up the D100, or put it away to collect dust? NO WAY!
The D100 is still a great camera and gives excellent photos. It's also good for digital infrared photography, as a backup to my D200, and it'll prolong the life of my D200 by using it for non-serious photography while saving the D200 for that more serious work.