Size and weight are big decision factors when you are trying to find the ideal camera for your needs.
In this section, we are going to illustrate the Sony A7S and Canon A2400 IS side-by-side from the front, back and top in their relative dimensions. Sony A7S has external dimensions of 127 x 94 x 48 mm (5 x 3.7 x 1.89″) and weighs 489 g (1.08 lb / 17.25 oz) (including batteries). Canon A2400 IS has external dimensions of 94 x 54 x 20 mm (3.7 x 2.13 x 0.79″) and weighs 126 g (0.28 lb / 4.44 oz) (including batteries).
Below you can see the front-view size comparison of the Sony A7S and the Canon A2400 IS. Canon A2400 IS is clearly the smaller of the two cameras. Its body is 33mm narrower, 40mm shorter and 28mm thinner than Sony A7S. As you can tell, actually this is not a fair size comparison since Canon A2400 IS has a built-in lens but Sony A7S doesn't. Once you put a lens on A7S, its thickness will increase significantly.
Here is the back view size comparison of the Sony A7S and Canon A2400 IS.
Now lets look at the top view comparison of Sony A7S and Canon A2400 IS.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon A2400 IS is significantly lighter (363g ) than the Sony A7S which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on A7S, the total kit will weigh much higher.
Weather Sealing
With its weather-sealed body, we believe that the A7S has a big advantage over the A2400 IS which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Sony A7S's 3.00" LCD screen is slightly larger than Canon A2400 IS's 2.7" screen.
In addition to the size advantage, Sony A7S LCD screen also has a
Tilting feature where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels. On the other hand, Canon A2400 IS has a fixed type screen which provides less flexibility in shooting positions compared to A7S.