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DxO PhotoLab
Exposure

Lesson 06 of the DxO PhotoLab Zero to Hero course. Learn how exposure works, how to brighten dark photographs, recover highlights, open shadows and build the foundation for every successful edit.

Welcome to Lesson 06 of DxO PhotoLab Zero to Hero. In this lesson we move into one of the most important editing controls in photography: exposure. After learning navigation, importing images, rating photographs, RAW vs JPEG and presets, exposure is where the real editing process begins.

Exposure controls the overall brightness of your photograph. If an image feels too dark, too bright, flat or unbalanced, exposure is usually one of the first places to look. Almost every serious photo edit begins with some form of exposure decision because brightness affects how colour, contrast, shadows and highlights are perceived.

This DxO PhotoLab exposure tutorial is designed for complete beginners who want to understand how to adjust brightness, recover detail, balance highlights and shadows, and create a stronger foundation before moving into white balance, contrast, noise reduction and more advanced editing tools.

What Is Exposure?

Exposure describes how bright or dark a photograph appears. If a photograph is too dark, it is often described as underexposed. If it is too bright, it is often described as overexposed. In editing, exposure adjustment allows you to correct or refine the overall brightness of the image after it has been captured.

Inside DxO PhotoLab, exposure adjustment is one of the most useful beginner tools because it gives you immediate visual feedback. Increase exposure and the image becomes brighter. Reduce exposure and the image becomes darker. That sounds simple, but the way exposure affects the mood and quality of a photograph is incredibly important.

A photograph does not always need to be perfectly bright. Some images should feel darker and moodier. Others may need to feel clean, bright and open. The goal is not to make every photograph look the same. The goal is to learn how brightness supports the subject, atmosphere and final intention of the image.

Highlights, Shadows And Midtones

Exposure is not only about overall brightness. A photograph is made up of different tonal areas. Highlights are the brightest parts of the image, such as skies, reflections, windows or bright clothing. Shadows are the darkest parts of the image. Midtones sit between the two and often contain skin, buildings, foliage, streets and most of the everyday detail in a photograph.

When you adjust exposure, all of these areas can be affected. If you brighten an image too much, highlights may become too bright and lose detail. If you darken an image too much, shadows may become blocked and difficult to see. A good exposure edit balances the image without destroying the information that matters.

This is why RAW files are so useful. A RAW file usually gives you more room to recover detail in highlights and shadows than a JPEG file. This connects directly to Lesson 04, where we looked at why RAW gives you more flexibility in DxO PhotoLab.

Recovering Detail In DxO PhotoLab

One of the reasons photographers use DxO PhotoLab is that it gives them strong control over RAW files. When a sky looks too bright or a foreground looks too dark, PhotoLab can often help recover information that appears difficult to see at first glance.

Exposure correction is especially useful for landscape photography, travel photography, street photography, portraits and low-light images. These situations often include bright highlights and dark shadows in the same frame. Learning how to balance these areas is one of the most useful skills in photo editing.

As a beginner, do not worry about making perfect edits immediately. Start by asking simple questions. Is the subject too dark? Is the image too bright? Are the highlights distracting? Are the shadows too heavy? These questions will guide your exposure decisions.

Why Exposure Comes Before Colour

Exposure usually comes before colour because brightness affects how colour appears. A photograph that is too dark may make colours look muddy or dull. A photograph that is too bright may make colours look washed out. Before you judge white balance, saturation or HSL adjustments, it helps to get the overall brightness into a sensible place.

This is also why exposure comes before the next lesson on white balance. Once the image brightness is balanced, it becomes much easier to judge whether the colour feels too warm, too cool, too green or too magenta.

Think of exposure as the base layer of the edit. It does not finish the photograph by itself, but it gives every other adjustment a stronger foundation.

When To Increase Exposure

Increase exposure when the image feels too dark, when the subject is difficult to see, or when important details are hidden in the shadows. This can be useful for portraits, interiors, shaded street scenes, travel images and any photograph where the camera underexposed the scene.

Be careful not to brighten the image so much that highlights lose detail. If bright areas become completely white, they may become distracting or impossible to recover. The aim is to brighten with control.

When To Reduce Exposure

Reduce exposure when the image feels too bright, washed out or lacking in depth. Lowering exposure can help protect highlights, add mood and make the photograph feel more grounded. This can be especially useful when working with bright skies, reflective surfaces or scenes shot in strong sunlight.

A small reduction in exposure can often make colours and contrast feel richer. As always, the key is subtlety. You are not trying to force the image; you are trying to guide it.

Continue The Course

Now that you understand exposure, continue to Lesson 07, where we look at white balance and how to control colour temperature, colour casts and natural-looking colour inside DxO PhotoLab.

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