Sony A580 weighs
599 g (1.32 lb / 21.13 oz) and has external dimensions of
137 x 104 x 84 mm (5.39 x 4.09 x 3.31″). Considering that the average weight of DSLR type cameras is 769g, Sony A580 is a remarkably light camera for its class. With a thickness of 84mm, it has an average thickness for its class.
Weight Comparison
DSLR Cameras
Thickness Comparison
DSLR Cameras
Here is the front and top view image of Sony A580 with the dimensions:
In order to give you a better idea about the real life size of Sony A580, we have added an image of how it looks next to a credit card and an AA type battery.
Now let's compare Sony A580 size with the camera that it replaced: Sony A100 (Check A580 vs A100). Sony A100 is clearly the smaller of the two cameras. Its body is 4mm narrower, 9mm shorter and 13mm thinner than Sony A580.
Below you can find the comparison of the weight and thickness of Sony A580 with its main competitors:
Sony A580 Size Compared to Main Competitors
Weather Sealing
Sony A580 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.