F-stops from f/1 through f/45 in full-stop increments (Credit: René Ramos) Technically, aperture is a ratio against the focal length, so while the current PCMag style guide sticks to a capital ...

What are the f-stops on your camera or lens? And what kind of effect does changing them have? Our chart explains all ...

This is where the term F Stop comes from. In camera lenses, the aperture is measured in F Stops. These are measured using a ratio of the focal length divided by the opening size. A smaller F stop ...

Choosing the right focal length is a crucial part of the creative decision making process for a photographer. You can have ...