Canon 1Ds MIII weighs 1385 g (3.05 lb / 48.85 oz) and has external dimensions of 150 x 160 x 80 mm (5.91 x 6.3 x 3.15″). Considering that the average weight of DSLR type cameras is 774g, Canon 1Ds MIII is a significantly heavy camera for its class. With a thickness of 80mm, it has an average thickness.
In order to give you a better idea about the real life size of Canon 1Ds MIII, we have added an image of how it looks next to a credit card and an AA type battery.
Now lets compare the weight and thickness of Canon 1Ds MIII with its main competitors:
Canon 1Ds MIII has environmental sealings on its body which makes it a weather resistant camera, providing resistance against the water and dust getting in to the camera. If you like outdoors photography and want to be able to use your camera in extreme conditions, Canon 1Ds MIII will serve you well. If you attach one of these Canon 1Ds MIII weather Sealed lenses to your camera, you will have a great all weather kit.