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Auto Exposure Bracketing : ウィキペディア英語版
Autobracketing
Autobracketing is a feature of some more advanced cameras, whether film or digital cameras, particularly single-lens reflex cameras, where the camera will take several successive shots (often three) with slightly different settings. The images may be automatically combined, for example into one High dynamic range image, or they may be stored separately so the best-looking pictures can be picked later from the batch. When the photographer achieves the same result by changing the camera settings between each shot, this is simply called bracketing.
==Automatic Exposure Bracketing==

The most common type of autobracketing is exposure autobracketing (often abbreviated to ''AEB'' for ''Automatic Exposure Bracketing'' or ''BR'' for ''Bracketing''), where the camera is set to capture the same image several times with different exposure settings, both over-exposed and under-exposed (lighter and darker) compared to the current setting on the camera,〔 which may already include exposure compensation. Depending on the camera, the difference between each of the autobracketed shots could be anywhere from one-quarter〔 up to three〔 full stops in each direction, in full, half, third or quarter〔 stop〔 increments, ranging from two up to nine〔 shots in series. Sometimes it is possible to either define the order, in which the shots will be taken, or to give an offset〔 as a start-point of the bracketing series. More sophisticated equipment allows auto-exposure bracketing to be combined with timer and intervalometer functions as well.〔
Cameras can perform autobracketing by adjusting either the shutter speed (typically in aperture priority mode, sometimes also in manual or program mode) or the aperture setting (typically in shutter priority mode). In programmed exposure mode, many cameras will alter both parameters at the same time. Some cameras allow to swap the parameter used for shifting in manual mode.〔 Digital cameras may also alter the ISO setting if auto-ISO is enabled.
Exposure autobracketing is most commonly used with color reversal film (slide film) because of its small exposure latitude compared with print film (which has a wide exposure latitude) and digital cameras (which enable the photographer to review the captured image).
In digital photography, autobracketing is convenient to shoot pictures for high dynamic range imaging.〔〔

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Autobracketing」の詳細全文を読む



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