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 Canon 50D and Canon 500D side-by-side from the front, back and top in their relative dimensions. Canon 50D has external dimensions of 146 x 108 x 74 mm (5.75 x 4.25 x 2.91″) and weighs 822 g (1.81 lb / 29.00 oz) (including batteries). Canon 500D has external dimensions of 129 x 98 x 62 mm (5.08 x 3.86 x 2.44″) and weighs 520 g (1.15 lb / 18.34 oz) (including batteries).
Below you can see the front-view size comparison of the Canon 50D and the Canon 500D. Canon 500D is clearly the smaller of the two cameras. Its body is 17mm narrower, 10mm shorter and 12mm thinner than Canon 50D.
Here is the back view size comparison of the Canon 50D and Canon 500D.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon 500D is significantly lighter (302g ) than the Canon 50D 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 Canon 50D and Canon 500D have the same Canon EF/EF-S lens mount and APS-C sized sensors, lenses will not be a differentiator on total size of the system.
Weather Sealing
With its weather-sealed body, we believe that the 50D has a big advantage over the 500D which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Canon 50D and Canon 500D'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.