What is F-stop?

Every profession has its own jargon and the photo is no exception. One is likely to hear the photographer says something like "Open the aperture" or "Reduce her down." These phrases relate to the same thing: F-STOP. F-STOP is a term for a measurable expression of how much light enters into the camera lens.

All cameras have a lens that helps record the picture. However, light must go through the lens in exact quantities to make the resulting photo properly exposed. This means that the photo should not be too light or too dark. The F-stop on the camera helps to regulate the exposure.

"F" In F-stop means "focal length". The focal length divided by the diameter of the pupil or the amount of light entering the lens determines the F-STOP number. He often expresses himself as something like "f/16" or "f/3". The number indicates the width of the opening in the aperture, which is an opening behind the camera lens. The aperture works more like an eye and swirls narrower or wider, depending on the required amount of light. Strange as it sounds, the biggeris the F-stop number, the smaller the aperture. F/16 is less open than f/3.

In the technique called reciprocity, the photographer can achieve similar results using seemingly opposite methods. For example, it can use a wide F/stop and a quick shutter speed or a narrow F-stop and a slow shutter speed. Both will lead to a properly exposed photo. The F-STOP also provides what is called the "field depth".

The field depth is, how many backgrounds are visible behind the main object in the photo. For example, if a photographer wants to show a single flower in the field, it will use a wide F-stop and a faster shutter speed. This will blur the background and bring the flower to sharp focus. However, if the photographer shoots a closer F-stop and a slower shutter speed before the mountain Vista. This allows photographers to capture their friends in the foreground and also in the mountains behind them, with a sharp focus.

F-STOP works in conjunction with shutter speedI measure how much light enters into the lens. The shutter speed measures the exposure time for photography. The shutter speed is expressed in hundredths of a second. For example, the speed of 200 shutter is two statins of a second. That is why the narrow F-stop speed and slower speed or wide F-stop and faster shutter speed allow approximately the same amount of light to the lens.

Because many photographers take pictures for sunny days, it is worth remembering the old "Sunny 16" rule. If the camera has manual settings, set it for f/16, with shutter speed corresponding to the speed of the movie. These days of digital cameras, set the shutter speed and ISO to the self -speed. Bingo: Every time a perfectly exposed photo.

there is much more permutation of the use and technique of F-STOP, depending on the size of the lens, the surrounding lighting, what was photographed and other factors. However, the basic understanding of the F-STOP will help the beginning photographer to get more of the lakesabout cameras.

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