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Exposure triangle: how important it's in composing a photo and how to use it correctly

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Hello! As I told you in the first 3 articles in the Beginner's Guide series, aperture, ISO and shutter speed must be combined so that you get the perfect light for your photo. In short, the exposure triangle is the way to combine the 3 parts of the exposure to display an image with the most appropriate light.

From a technical point of view, there is only one correct exposure (example 1: different settings, same light). But, you can create dozens of different exposure modes and choose one that matches the photo you are taking (example 2: same light, different bokeh).

Example 1:


Example 2:


Remember that if you change one variable in the exposure triangle, for example, the shutter speed, you will have to change one or more variables in the opposite direction.

Ex: If you decrease the shutter speed by 2 values you will have to increase the ISO and/or the aperture by 2 values

Pro tip: When you want to take a picture in low light conditions, instead of lowering the shutter speed, I advise you to raise ISO because it is much better to have a noisy image than a moving one.

If you liked this article and if you want to continue this series, do not hesitate to write a comment with what you think about this article and what you want to post next! Also, take a look at my Instagram account @alex.photo.editor, where I post the pictures I took and many stories :))

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