The Exposure Time

The Exposure Time

Another important setting for picture composition and exposure is the exposure time or shutter speed. It determines how long the light falls on the sensor of the camera or how long the shutter is open. But what is generally regarded as short, and what a slow shutter speed? Well, usually referred to exposure times of less than 1/60 sec. When shutter speeds (eg 1/200 sec., 1/1000 sec. Or shorter), everything about it (eg, 1/30 sec. To 1 or more seconds) and slow shutter speeds. Analogous to the aperture (the farther open the more light comes on the sensor) it behaves well with the exposure time: the longer the shutter speed is set, the more light falls at the end of the camera's sensor.

The exposure Time
At slow shutter speed of 1/30 sec. - Blurred image

Dealing & design with long exposure
Surely you know that if you want to shoot without the flash and tripod: even not when recording the camera still and the picture is slightly to strongly shake. This uncertainty arises when to slow shutter speeds from a standstill caused by unfavorable lighting conditions, for example, at dawn. If you are photographing in the automatic mode, the camera tries this first with an opening of the diaphragm, or an increase of the ISO value to compensate. Even that is not enough to expose the image correctly, the shutter speed is extended and it comes to camera shake. From what shutter speed you can not take pictures out of the hand can depend next to the existing light and the focal length used depends on how quiet you can hold the camera and possibly from a possibly existing Image Stabilizer to the lens / camera. However, you can take here the already mentioned value of 1/60 sec. As the limit. Values ​​of 1/50 sec. Or 1/30 sec. Are already critical. Try it just once, the time delay (Tv or Sv / S) by you use your camera.

But wait, what can be long because then be good to get out from the disadvantage of camera shake more light to the sensor? For a whole lot! With it arise, used properly, some great design possibilities. Equipped with tripod and remote release you can, for example, great shots of a city panorama at night catch. Solid Stands for entry are as the Mantona tripod Scout or Cullmann ALPHA 2500. In such recordings long exposure times are unavoidable in order to capture the unique lighting effect. Movements of subjects can be transported through longer exposure times in the image. Think about photos of waterfalls where the water acts as a kind of veil in appearance or running pedestrians, the ghostly blur of a certain exposure time. These are of course only some very classic examples. But your creativity and experimentation are no limits. Try out different things in order to get a feel for the design possibilities.

The exposure Time
Fast shutter speed of 1/1000 sec can freeze movements

Dealing & design with short exposure times
Unlike long exposure of dealing with short exposure times rather straightforward (assuming there is enough light). Shake are completely excluded here, as a rule. Short to very short shutter speeds are as used in sports photography to freeze motion in the picture. This design element also opens up a range of creative possibilities for picture composition photographer. Especially at extremely fast shutter speed moments can hold, which are not detectable by the naked eye. Water, for example, can be captured just as exciting with short exposure times, as long as the image impressively proves the left. With water, the ideas should not stop, of course. "Freeze" can be combined with enough light actually just about anything that moves! Enjoy scouting!
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