My first step in getting to know my camera a little closer is to find my focal length. For this I took 3 photos of a flower pot in my garden:
In the first photo I tried to make the pot the same size as I saw it in reality:
Focal length: 49mm
Now I took the photo in the widest view:
Focal length: 18mm
And the last photo is the furthest telephoto setting:
Focal length: 55mm
Than I printed the photos on a A4 page and went back to see the pot. In the first photo I had to hold the photo about 15 cm from me. In the second photo I had to go back to see the pot the same size and in the 3rd photo I had to come closer.
As it seems my camera's focal length is 49mm.