Pentax K100D weighs
660 g (1.46 lb / 23.28 oz) and has external dimensions of
129 x 93 x 70 mm (5.08 x 3.66 x 2.76″). Considering that the average weight of DSLR type cameras is 773g, its weight is about average in its class. With a thickness of 70mm, it also has an average thickness.
Weight Comparison
DSLR Cameras
Thickness Comparison
DSLR Cameras
In order to give you a better idea about the real life size of Pentax K100D, we have added an image of how it looks next to a credit card and an AA type battery.
Physical size of the Pentax K100D Body Compared to a Credit Card and an AA Battery
Below you can find the comparison of the weight and thickness of Pentax K100D with its main competitors:
Pentax K100D Size Compared to Main Competitors
Weather Sealing
Pentax K100D 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.