Photography is extremely seductive for a lot of people around the world, it can be practiced at a professional level or as a very strong hobby. One of the first things people want to learn about photography is how to use a camera in manual mode. Here is an introduction to f-stop and aperture Manual mode empowers anyone to create extremely creative images beyond the “perfect” modes the camera figures out when shooting in Auto or Program. In photography, everything is about capturing light and today we are going to talk about one of the most complex features of exposure – that is, what is an F-Stop and how apertures control depth of field. If you are a beginner in photography, the words f-stop and aperture may sound new or quite complicated. So before diving into the details of how these work, we will quickly look at what is an f-stop and what aperture means.
What Is Aperture?
Aperture is quite straightforward and it is nothing but the opening in your camera's lens that allows light to pass through the lens on to the camera's sensor. The size of the aperture is controlled by aperture blades and it is this aperture value or size that decides the amount of light entering the lens. Wider apertures let in more light leading to shallow depth of field, whereas narrow apertures let in less amount of light leading to a larger depth of field and photographers can make use of varying aperture values to control exposure and depth of field in their images.
What Is An F-Stop?
F-Stop (N) is called the focal ratio which is the ratio of the focal length of the lens (f) to the diameter of the aperture (D). In simple terms, this is nothing but the aperture value that your camera displays, for example, f/1.8, f/5.6. f/11, f/16, etc., and it is also called the F-Number.
f/1.8 is a larger (wider) aperture compared to f/5.6 and f/5.6 is a larger aperture compared to f/11 and so on.
If you are someone who gets confused with the term larger apertures, this should help you. Consider the f-numbers as fractions, for example as 1/1.8, 1/5.6, 1/11, etc. In these fractional numbers, 1/1.8 is larger than 1/5.6 and 1/5.6 is larger than 1/11. Keeping this in mind, think of the aperture values where f/1.8 is larger or wider than f/5.6 and f/5.6 is larger compared to f/11. This is quite simple. It is called f-stop, because it simply stops or limits the amount of light entering the camera depending on the size of the aperture.