The Apeture Experiment

Different lenses will give slightly different results, so heres a little experiment you can do to test the capabilities of your lens and help you gain a better understanding of what will happen as you adjust the  apeture setting on your camera.

The experiment is to take three photographs of exactly the same thing, one photo at the lowest setting your lens will allow, one middle of the range and one at the highest setting, making sure each photo is focussed on the object.

You should see something similar to this happening.

The first photo is taken with an aperture setting of 2.8

The second is taken with an aperture setting of 8

The third is taken with an aperture setting of 16

You should notice as the setting increases so does the depth of field, bringing more of the background into focus as well.