what is the iso in photography

What is the exposure triangle?

But first, it helps to have a good understanding of exposure, which is the sum total of the three most important settings in all of photography: shutter speed, aperture, and ISO. Collectively, these form what is known as the exposure triangle.

How to adjust exposure on a camera?

For cameras that have a button, you will need to hold the button and rotate one of the thumb dials, or press it once and use the LCD screen to adjust the exposure value.

How does a camera meter work?

Since camera meters work by evaluating light reflect ed off subjects and are standardized on middle gray (also known as 18% gray), any time a camera is pointed at something very dark, the meter will work the opposite way by brightening up the exposure, whereas a very bright subject will cause the meter to darken the exposure.

Where is the exposure compensation button on a Canon DSLR?

If you are using a Nikon DSLR, it will most likely be a button near the shutter release of the camera: If you are using a Canon DSLR, there might be an “AV” button on the back of the camera:

This is a short movie about what is the iso in photography. Let’s watch it together. If you have any questions, please reply to this news video.