Nikon D100 weighs
780 g (1.72 lb / 27.51 oz) and has external dimensions of
144 x 116 x 81 mm (5.67 x 4.57 x 3.19″). Considering that the average weight of DSLR type cameras is 773g, its weight is about average in its class. With a thickness of 81mm, it also has an average thickness.
Weight Comparison
DSLR Cameras
Thickness Comparison
DSLR Cameras
Here is the front and top view image of Nikon D100 with the dimensions:
Front and Top View External Dimensions and Size of Nikon D100 Camera Body
In order to give you a better idea about the real life size of Nikon D100, we have added an image of how it looks next to a credit card and an AA type battery.
Physical size of the Nikon D100 Body Compared to a Credit Card and an AA Battery
Below you can find the comparison of the weight and thickness of Nikon D100 with its main competitors:
Nikon D100 Size Compared to Main Competitors
Weather Sealing
Nikon D100 doesn't have any environmental sealings on its body so you got to be extra careful to protect it against water and dust. If you shoot under these conditions very often, consider checking Top DSLR Cameras with Weather Sealing page.