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01. Set up your camera for best quality
Choosing the right file format, ISO and white balance settings will help to ensure top quality results. With ISO sensitivity it's best to stick with a low setting such as 100 or 200 where possible, because higher values introduce 'noise', which leads to lower quality pictures. You can leave the white balance on Auto, but it's important to know how and when to change it.
02. Understand exposure
Most cameras are programmed to produce 'mid-tone' pictures. So, shots with lots of grass, road and other 'middle' tones - not too bright not too dark - are perfectly exposed. However, cameras want to make all pictures this middle tone. So, pictures of very bright scenes (such as snowy landscapes) can end up being made too dark and scenes with lots of dark areas (such as black cat against dark trees) can look too grey. You may have to use the exposure compensation feature of your camera to either add more light (in the case of snow) or take it away (as in the cat shot).
03. Get to grips with the histogram
Don't trust the picture on the rear screen alone to judge how bright or dark your picture will be. The 'histogram' provides a much more accurate guide. You should aim for the shape to stop before it reaches the left or right edges of the graph - if it's 'clipped' on the left it means you'll have dark areas with no detail; if it's clipped on the right, you'll have overexposed highlights. It's always good practice to slightly underexpose an image to retain detail in the bright areas - 'blown' highlights can ruin an image.
04.Experiment with aperture and shutter speed
Aperture and shutter speed are the two most important settings on your camera. The combination you select controls not only the amount of light let into the lens to expose your photographs, but can also be used to change the way in which your subject is recorded. Aperture plays a big role in how much of a scene appears in sharp focus (higher numbers such as f/16 and f/22 increases this), while shutter speed makes the subject (or camera) movement appear frozen or blurred.
05. Get the important bits in focus
If you're photographing people or animals, make sure that you get the eyes sharp. A classic problem is where a camera has focused on the nose, rather than the eyes. To solve this, place the camera's focus point on your subject's eye, half-press the shutter button to lock the focus and, keeping it half-pressed, reframe the shot to give the best picture. Then fully press the button to take the shot.
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06. Support your camera
When you're shooting with the lens zoomed right out towards a subject, you need to make sure you hold the camera very steady. Even better, support it on a wall, chair or tripod, so you don't accidentally wobble it. Otherwise, any slight shake of the camera will be magnified by the long lens and can lead to blurred pictures.
07. Choose the right drive mode
Your camera's 'drive' mode allows you to choose whether pictures are taken one at a time or continuously. In 'single frame' mode, the camera will only take one shot each time you press the shutter button. Use it for static subjects, such as portraits, landscapes and buildings. In 'continuous frame' mode the camera will keep taking pictures as long as the shutter button is held down. It's ideal for increasing your chances of capturing 'the moment' during action and sports.
08. Choose the right focus mode
The autofocus mode you choose depends on whether the subject is moving or stationary. In 'single' AF, your camera focuses once and stays locked as long as you keep the shutter button pressed halfway. If either you or your subject moves then you'll have to re-focus. In 'continuous' AF, your camera focuses when you press the shutter halfway, but continues to re-focus as long as you keep the shutter button pressed halfway. It's therefore ideal for tracking moving subjects.
09. Use the white balance presets
In most situations, the automatic white balance setting on your camera will give you excellent colours. There are times when it won't be so accurate though (especially during indoor shoots), introducing orange, blue or greenish colour casts where you don't want them. Camera makers know this - that's why they include the preset options. If you're shooting indoors, try switching the white balance setting the lightbulb symbol. Just remember to change it back to the sun (daylight) symbol when you head outdoors again. To make sunset pictures more orange, trick your camera by using the cloudy white balance setting.
10. Take test shots
The viewfinders of most digital SLRs don't show you the whole picture, so your actual image will include slightly more of the scene than you see during composition. So it's important to playback the shot on the rear screen before moving on, looking out for distracting objects lurking around the corners of the frame and behind your subject. It's also a good idea to check sharpness by zooming in and ensure that the exposure is correct using your histogram. If you're unhappy with anything, adjust your settings and take another test shot.
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