15 top tips to boost your photography skills

06. Master exposure compensation

Plant photographed against a dark background

The dark background has caused the camera to over-expose the shot

Deciding whether to increase or decrease the exposure of your shot can be puzzling, as the adjustment you need to make is often the opposite of what you might at first expect. Here's how to use your camera's Exposure Compensation function to lighten or darken your image.

If the subject contains mostly light tones you may find that your camera will under-expose your image. In this situation, you need to press and hold the Exposure Compensation button, increase the exposure by turning the dial right to enter a value of +1, then take the shot again.

If shooting a mainly dark subject, your camera is likely to over-expose the scene, so you may need to reduce the exposure. Press and hold the Exposure Compensation button as before, but this time turn the dial left to enter a value of -1.

Read Digital Camera World's articles How to always get exposure right – exposure settings explained and What are the differences between the PASM exposure modes on your camera? for more tips.

07. Decipher the Histogram

Image of castle and sky with a white sky, left, and a waterfall that's too dark, right

The over-exposed image is on the left, while the image on the right is under-exposed

The easiest way to check the exposure of your shots is to use the Histogram display on your camera's rear screen when reviewing your images.

This shows the distribution of exposure as you shoot. To get the most from this handy tool you need to recognise the characteristics of under- and over-exposed shots. If there’s a gap to the left of the Histogram, and the graph goes off the right-hand side, the image is over-exposed. The opposite will be true for under-exposed images – there will be a gap to the right of the Histogram.

08. Deal with high-contrast lighting

Waterfall and lake in shadow and sun

Learn to deal with high-contrast lighting and capture the maximum range of tones

Using your DSLR's Exposure Compensation to adjust the overall exposure is fine for many subjects, but there are also times when the brightness range of the subject is too large for your camera to capture detail in both the shadows and highlights.

This range is known as the camera's dynamic range, and while it does vary between different models, it's pretty common to find scenes where the contrast is greater than even the best cameras can cope with.

With practice, you'll often be able to recognise these conditions before you start shooting, but the easiest way to spot the situation is by reviewing your shot and checking the histogram and highlight warnings.

Two images of the waterfall and pool, one darker and one lighter

We shot one image at -1 exposure compensation, and another at +1. Combining the under- and over-exposed shots gives an image with detail in both highlights and shadows

Start by taking a shot and checking that the shadows reach the left of the graph. You can now activate the highlight warning display. If the display blinks to indicate that there are highlights without any detail, then your camera can't record the whole brightness range.

When you are faced with this situation, there are a number of ways to deal with the problem. If you are shooting in JPEG mode, many cameras offer built-in systems to capture more highlight and/or shadow detail than normal images. The Nikon system is called Active D-lighting, while the Canon version is Auto Lighting Optimiser.

09. Try an ND grad lens filter

Filters held up to bright skies

ND grads help tame bright skies

The traditional solution for dealing with high-contrast lighting is to use an ND grad lens filter. These filters are half dark and half clear, so you position the dark area of the filter to reduce the brightness of the lightest area of the scene.

This is fine where a large area of the scene is brighter than the rest, such as the sky in an open landscape. However they are less useful for subjects containing smaller bright areas, such as windows or sunlight through trees, because the filter will darken the areas around these highlights too.

10. Create HDR images

High Dynamic Range (HDR) has become a popular technique for capturing images that would otherwise have burnt-out highlights, no shadow detail, or both. 

To achieve true HDR images you need to take at least three shots, one under-exposed, one correctly exposed and one over-exposed. Then combine these images using either the Merge to HDR tool in Photoshop, Lightroom's HDR Merge tool or software such as HDR Efex Pro 2 or Photomatix.

11. Recover detail


Set the exposure so you capture as much highlight detail as possible

Shooting in raw will allow you to capture more highlight and shadow detail than in JPEG mode. But even in raw it’s easier to recover more detail from the shadows than the highlights. For this reason, when shooting high-contrast subjects set the exposure so that you capture as much highlight detail as possible.

Next page: Pro composition, sharpening and saturation advice

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