Understanding Focal Lengths - photography tutorial.

The focal length of a lens has a huge impact on your images and is one of the most important tools in your creative toolbox.

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Most digital cameras have a fixed zoom lens that can't be removed or replaced. One big advantage is that the camera is sealed so no dust can get on the image sensor. Digital SLR cameras have removable lenses so you can change them when circumstances dictate.

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Light is one of the elements of a scene that you can alter, play with, control, and make a less or more important part of your picture. Light can make a picture ominous or airy, glowing or velvety dark. To use light creatively, you may have to override your camera's autoexposure system.

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Light not only has direction, it can be direct or diffused. Direct light, light coming mainly from one direction, produces relatively high contrast between bright highlights and dark shadows.

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The direction that light is coming from relative to your camera's position is important because it affects the shadows that will be visible in your picture. Four main types of lighting are illustrated here: side-lighting, front-lighting, backlighting, and top-lighting.

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You can photograph many different things outdoors at night, so don't put your camera away just because the sun is gone for the day. Light sources (street lights, automobile lights, neon signs, or fires) or brightly lit areas (illuminated buildings or areas under street lights) will dominate pictures at night because they stand out strongly against darker backgrounds.

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The choices you make when photographing in color, such as how to position a colored object against its background or whether to concentrate on bright, brilliant colors or muted, soft ones, affect the mood and general impact of your pictures.

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There's no need to leave your camera home just because the sun hasn't come out. In fact, rain, snow, fog, and mist can add interest to your pictures.

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Sunsets and sunrises are relatively easy to expose because the exposure is not as critical as it is with some other scenes.

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In photography, there is a color of light called "daylight". However, over the course of the day, the light can change from a warm red at sunrise, to a cold blue at noon, and then back to a warm red or orange at sunset.
Let's get into some details here!

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