As I find them, I will add relater web sites to this page. Comments are welcome (via email), How to use manual mode on your camera, by Tony and Chelsea Northrup. Martin Bailey’s take on the Exposure Triangle CrashCoursePhotography.com — their take. Canon offers an interactive website on using manual mode in your (Canon) camera.…
Category: Overview
Tertiary Effects
There are some third-order effects in the choices on the Exposure Triangle. These are generally not considered to be part of the art of photography, but they are worth mentioning here, for completeness. The effects we will discuss here are “Rolling Shutter” (next), “Diffraction” and “Starburst.” Note: Most readers can skip this section and go directly…
Summary of the effects of the parameters in the Exposure Triangle
Primary Effect Secondary Effect(s) Tertiary Effect(s) Shutter Speed Control the amount of time the sensor is exposed to light Blurring or freezing of subject in motion Rolling shutter Aperture Control the amount of light from the scene that hits the sensor Depth of field/Bokeh Diffraction; Starburst ISO Control the sensitivity of the sensor to light…
Putting it all together: Exposure
“Exposure” is the choices made in the Exposure Triangle and how it looks in the final picture. An image is properly exposed when it is not too bright and not too dark.[1] Here is an image I took on July 9, 2014. The exposure triangle settings for this image were: Aperture: f/6.3 Shutter Speed: 1/800…
What is a “Stop”?
Now we can answer why we use the word “stop” in talking about exposure. On old cameras with a manual aperture ring, the aperture numbers are marked on the ring, similarly to the picture show above. On these old lenses, there was a mechanical click, or “stop,” built in to the action of that ring.…
Why Exposure “Triangle”?
Many photography teachers shy away from the phrase, “Exposure Triangle,” and for good reason. The triangle itself has no meaning. First, there is no “light” leg. Second, it gives the viewer a mental picture of a non-existent relationship among the legs. But since there are three aspects of exposure that can be adjusted, it is…
The Exposure Triangle
The Exposure Triangle is the term used to describe the way the exposure can be changed when you are taking a picture with a camera. The three parts of this triangle are: Shutter speed – How long the shutter stays open for the exposure, Aperture – What size opening in the lens is made, ISO…