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Photography terms and definitions

What is the Exposure Triangle?

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It’s not as sexy as a love triangle and not as dangerous as the Bermuda Triangle. However, the exposure triangle is key to understanding how your camera works. The exposure triangle is also important if you want to nail exposure in a semi-automatic mode or manual mode.

The three things that affect exposure in an image are aperture, shutter speed, and ISO. If you change one of those settings, you must adjust one of the others to compensate. This is where understanding the exposure triangle and stops of light is useful.

What is ISO in photography? A complete guide to understanding ISO

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What exactly is ISO in photography? You’ve probably heard of it when someone shouts random numbers at you at a camera club. It seems important. Maybe it influences exposure? Can it make your images brighter or more grainy or less sharp, or all of those?

It might seem a bit mysterious at first, but ISO is pretty straightforward, and is the final key to understanding the exposure triangle. Here we will chat about all things ISO related and demystify this final clue to the exposure puzzle.

What is shutter speed in photography? A complete guide

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Understanding shutter speed in photography is another important step in the journey to taking full creative control over your images. Shutter speed is one of the three pillars on the exposure triangle, along with aperture and ISO. It directly impacts the overall exposure, the amount of light that hits the camera sensor, and any motion blur (or lack of).

To choose the correct shutter speed, you must consider the lighting conditions and subject matter you are shooting. Here is the full rundown.

What is Aperture in Photography? A Complete Guide

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Understanding aperture in photography is understanding one of the fundamentals of how your camera works. It’s one of the three important points of the exposure triangle (along with shutter speed and ISO). By understanding aperture, you’ll be well on your way to shooting perfect exposures and having maximum creative control over your images.

The aperture is the hole in your lens that opens and closes to let light into the camera. It has a significant effect on both exposure and depth of field (DOF) in the image. However, it can be a little confusing at first and can often seem counterintuitive, particularly for new photographers.

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