Sony A77 weighs 732 g (1.61 lb / 25.82 oz)
and has external dimensions of 143 x 104 x 81 mm (5.63 x 4.09 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.
Here is the front and top view image of Sony A77 with the dimensions:
In order to give you a better idea about the real life size of Sony A77, we have added an image of how it looks next to a credit card and an AA type battery.
Now let's compare Sony A77 size with the camera that it replaced: Sony A700 (Check A77 vs A700). Sony A700 is 1mm narrower and 1mm thinner than Sony A77 but it is also 1mm taller.
Below you can find the comparison of the weight and thickness of Sony A77 with its main competitors:
Sony A77 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, Sony A77 will serve you well. If you attach one of these Sony A77 weather-sealed lenses to your camera, you will have a great all weather kit.