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 Zf and Sony A900 side-by-side from the front, back and top in their relative dimensions. Nikon Zf has external dimensions of 144 x 103 x 49 mm (5.67 x 4.06 x 1.93″) and weighs 710 g (1.57 lb / 25.04 oz) (including batteries). Sony A900 has external dimensions of 156 x 117 x 82 mm (6.14 x 4.61 x 3.23″) and weighs 895 g (1.97 lb / 31.57 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon Zf and the Sony A900. Nikon Zf is clearly the smaller of the two cameras. Its body is 12mm narrower, 14mm shorter and 33mm thinner than Sony A900.
Comparison image of the Nikon Zf and the Sony A900 Size, Weight and External Dimensions - Front View
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon Zf is significantly lighter (185g ) than the Sony A900 which may become a big advantage especially on long walking trips.
Also keep in mind that body weight is not the only deciding factor when comparing two interchangeable camera bodies, you also have to take into account the lenses that you will be using with these bodies. Since both Nikon Zf and Sony A900 have the same Full frame sized sensor, their lenses for a similar focal length and aperture will be similar in size and weight.
Weather Sealing
Both the Zf and the A900 have weather sealings in their bodies, making them resistant to water and dust.
LCD Screen Size and Features
Nikon Zf's 3.20" LCD screen is slightly larger than Sony A900's 3" screen.
Moreover, Nikon Zf sports a
Fully Articulated screen which you can change the angle and position of the screen almost freely, making it possible to shoot from waist or over-the-head levels, and especially very useful for shooting selfies and video. On the other hand, Sony A900 has a fixed type screen which provides almost no flexibility in shooting positions compared to Zf.
