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What is the f-number?

Basically, it's a dimensionless number describing the speed of a lens. The smaller the number, the faster the lens. It is the ratio of a lens's focal length to the diameter of the entrance pupil. It is also called focal ratio, f-ratio, f-stop or relative aperture.
Beside is a diagram of decreasing apertures from 2.8 to 8 in one-stop increments. Each aperture has half the light gathering area of the previous one.

Read more about the f-number on Wikipedia.

About me:

My name is Oliver Baumberger, I live in Switzerland, a country that offers various great photo opportunities with its mountains and the four seasons. Normally I prefer going outside to take pictures of landscapes. But there are a lot of different motives I'm interested in, such as airplanes, with which I originally learned how to operate a camera.

Browse through my gallery to get an idea of what my style is.

 

 

 

Foto: Kevin Kündig

Equipment:

For most of the pictures on my website I used a professional DSLR camera with various lenses. I've been using Canon gear ever since I had my first DSLR camera, an EOS 350D. At the moment I'm shooting with the following cameras/lenses:

  • Canon EOS 6D
  • Canon EF 17-40 f/4 L
  • Canon EF 35 f/2 IS USM
  • Canon EF 100 f/2.8 L IS USM
  • Canon EF 300 f/4 L IS USM
  • Fujifilm X-T20
  • Fujinon XF 23 f/1.4 R