The Light Triangle Photography

I appreciate this is a fairly complex subject and it is something.

The light triangle photography. This opening is what controls how much or little light can pass through the camera lens and onto the camera s sensor. The exposure triangle is a common way of associating the three variables that determine the exposure of a photograph. The exposure triangle sounds like the name of a complex spy novel but in reality this is the term used for the three fundamental elements of exposure. Iso the measure of a digital camera sensor s sensitivity to light.

The three elements are. Aperture shutter speed and iso. Aperture shutter speed and iso. For example moving from a shutter speed of 1 60 s to 1 30 s will add a stop of light because the shutter will remain open twice as long.

Each of the three aspects of the triangle relate to light and how it enters and interacts with the camera. It is measured in seconds. Light passes through a hole and is captured on a medium. This exposure triangle concept refers to how large or small the opening is thru the lens as you can see in the above illustration.

The depth of field is a byproduct of this concept. The key part is controlling the amount of light and focusing the light so we get a correctly exposed and in focus image. Aperture the size of the opening in the lens when a picture is taken. Hopefully this post has helped explain the exposure triangle photography concept in some detail.

Shutter speed the amount of time that the shutter is open.