Lens aperture

Understanding how lens aperture works in photography

Setting the size of the opening is the perfect way to add punch to your images. The opening is an opening in the center of the lens that light passes. This opening is the shape of a circle and can open and close - the larger the diameter of the opening of more light through your lens.

The amount of light passing through an aperture is given by f / stops or f / number. Plus the F-stop more lights that passes through the opening. Opening a complete stop of f / double the amount of lights the camera. F / 4 is twice the light of f5.6.

The following is the complete set of numbers f / f / stops.

f / 1 f/1.4 f / 2 f/2.8 f / 4 f/5.6 f / 8 f/11 f/16 f/22 f/32


By choosing an open or large (f/5.6 or below), you decide what part of your image is sharp. This function is ideal for taking pictures of wildlife, portraits, sports and small objects. Using a large aperture reduces the depth of field.

The higher the f / number, more openness - meaning that if you shoot at f / 8 you have more light than if you shoot at f/11.

By selecting a large number f / (a small aperture f/16 or narrow and more), all or most of the scene is quite strong. It is ideal for landscape photography. Using a small aperture increases depth of field.

Use your diaphragm correctly will improve your photos.

Aperture and depth. When you focus on a set point with a large number f / (f/16) and the area behind the sharp point of attention - the area between these two points is known as depth of field. If you are a small aperture at f / number (f / 2) its field of interest is clear - each image is not clear.

Use your diaphragm properly with the shutter exposure control.