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 Nikon D3S and Fujifilm SL300 side-by-side from the front, back and top in their relative dimensions. Nikon D3S has external dimensions of 160 x 157 x 88 mm (6.3 x 6.18 x 3.46″) and weighs 1240 g (2.73 lb / 43.74 oz) (including batteries). Fujifilm SL300 has external dimensions of 122 x 93 x 100 mm (4.8 x 3.66 x 3.94″) and weighs 510 g (1.12 lb / 17.99 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon D3S and the Fujifilm SL300. Fujifilm SL300 is 38mm narrower and 64mm shorter than Nikon D3S but it is also 12mm thicker. As you can tell, actually this is not a fair size comparison since Fujifilm SL300 has a built-in lens but Nikon D3S doesn't. Once you put a lens on D3S, its thickness will increase significantly.
Here is the back view size comparison of the Nikon D3S and Fujifilm SL300.
Now lets look at the top view comparison of Nikon D3S and Fujifilm SL300.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Fujifilm SL300 is significantly lighter (730g ) than the Nikon D3S 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 D3S, the total kit will weigh much higher.
Weather Sealing
With its weather-sealed body, we believe that the D3S has a big advantage over the SL300 which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Nikon D3S and Fujifilm SL300's LCD screens have the same diagonal size of 3.00 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.