วันพุธที่ 11 พฤษภาคม พ.ศ. 2554

As focal lengths Master Photography

As focal lengths Master Photography

As focal lengths Master Photography

Posted: 11 May 2011 02:20 PM PDT

Simple lens to focus light at a certain distance from the target. Everyone knows how a magnifying glass and sunlight can be focused through it so that paper ignites. This distance from the magnifying glass on paper is the focal length (FL) of the lens. The same is true for all the camera lens on A.

The focal length of a camera determines how much of the scene or object from a photo published in The shortestthe focal length longer appear on the scene in the picture. In contrast, the longest is less than the scene depicted in the photo.

Focal lengths are wide-angle lenses. Long telephoto lenses FL are easily isolated part of the scene, even from a distance. As a photographer, you should always be a wide-angle lens for landscapes because of the large area that can be detected.

The lens provided by FLSin millimeters. Wide angle lenses from 18mm to 35mm have FLS. prime lenses, the magnification can be considered normal, since no lenses for shooting in low or focal lengths ranging from 40mm to 55mm. telephoto lens to zoom in the scene , the focal length from 75mm to 400mm working round and beyond with.

Zoom lenses are always SLR and digital SLR cameras. These lenses have variable focal lengths, giving them a joybe used because they reduce the need to replace the lenses too. They save a lot of money if you prefer not to have to splash a series of lenses.

Zoom lenses for digital SLR cameras are equipped with 70 mm ranges from 18mm to 55mm or 70mm and 210 mm. Some zoom lenses cover the full range 18mm to 200mm. This is not to be expected, zoom lenses on the quality of rival fixed focal length for the image. You'll always get what you pay for in photography.

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