EV exposure compensation adjustment.

Physical aperture and shutter controls are exposed, and EV digital camera inside the camera but the software can be adjusted to control the exposure more reasonable! .Should be said that a reasonable grasp of the EV can better help the photographer get a more accurate exposure of photos. .Many players in the selection of digital cameras, it is often only on the digital camera optical zoom magnification, pixel, resolution, size of the aperture and shutter to control exposure are physical, and digital camera can adjust the EV is software inside the camera .more reasonable exposure control! .Should be said that a reasonable grasp of the EV can better help the photographer get a more accurate exposure of photos. .Many players in the selection of digital cameras, it is often only on the digital camera optical zoom magnification, pixel, resolution, size and other issues, the exposure parameters for digital cameras are often not enough attention, then this digital camera a very important process .link. .Speaking of exposure is impossible not to mention EV - exposure value. .Exposure and aperture, shutter speed and ISO susceptibility is related to the time when the fixed ISO, EV is the particular combination of aperture and shutter. .Shutter with an aperture corresponding to our table to talk about the concept of EV. .The first line is the aperture <p> sequence A, from f / 1 ~ f/32, while the left is the shutter speed, in seconds, from 1 second to 1 / 1000 sec. .We EV = 6, for example, from the table to find any of the 6 to see if it's rows and columns correspond to the values, such as line 8 column 4 a 6, then the sequence of its corresponding aperture is F1.4, .shutter speed of 1 / 30 seconds. .This table is very simple, we should soon understand, but an ordinary consumer digital camera, mostly in the range of aperture f/2.8 ~ f / 8 between. .Played a digital camera knows that this statement has exposure compensation, exposure compensation, divided into positive and negative compensation compensation of two. .Compensation that is meant to increase exposure, marked as EV +; negative compensation that is meant to reduce exposure, marked as EV-. .As can be seen from the table, EV0 is 1 second, f / 1 combination, EV20 is 1 / 1000 sec, f/32 combination, we can see the maximum exposure is EV0, the minimum is EV20. .This digital camera CKS compensation, compensation for the representation of the negative opposite, that is compensated EV +, in fact, to reduce the EV value; and negative compensation EV-, EV value to increase. .</ P> <center> </ center> <p> more piece of film making EV 0.3 </ p> <center> </ center> <p> and painting it, as the EV-chip 0.70 increase, according to .two images of the same scene, we can see different EV gives me the door will be different exposure combinations, you can make the photographer play their imagination to play with the most abundant light! .Digital camera digital camera exposure mode is now generally divided into two exposure modes: Program Auto mode and full manual modes (aperture priority mode, shutter priority mode). .Aperture priority mode is selected by the photographer when shooting people aperture. .Brightness according to the scene by the camera, CCD sensitivity, and artificial selection of the aperture and other information automatically selects the appropriate shutter exposure time required for the automatic exposure mode, ie, manual aperture, shutter speed automatic exposure mode. .This exposure mode is mainly used in the shooting to be the depth of field priority situations, such as shooting landscape, portrait or macro photography. .Its advantage is that it allows the photographer control depth of field according to demand. .Shutter speed priority mode is selected in the shooting were identified on the basis of the shutter, the camera according to metering information, CCD shutter speed and artificial time, automatically select the correct aperture size required for exposure. .Manually select the shutter speed, aperture it is set automatically. .In this mode, the most camera time, either manually select shutter or aperture setting the camera automatically adjusting coefficient, will be in the LCD screen and the viewfinder display. .Manual exposure mode, shooting to be done manually adjust aperture and shutter speed, but unfortunately there are not many digital cameras this feature, but the digital camera's exposure compensation to a certain extent, this part of the user to meet the demand for exposure adjustment. .The digital camera has exposure compensation of the brightness can be changed photos. .Automatic exposure mode in the majority of light can shoot a good effect, but, strictly speaking, is not automatic exposure settings in any lighting conditions can be perfectly complete exposure control, it also has some of its shortcomings, since the film .objects in different light environments, it is vitally important how to control exposure. .Flash, reflectors and other natural very useful, proper use of exposure compensation is the best compensation for this defect, so the camera can shoot high quality images. .Now digital cameras are generally available commercial exposure compensation, adjustment range is generally about ± 2.0EV (generally a digital camera's exposure compensation value of step is 1/3EV, some of 1/2EV). .Some good digital camera also features Auto Exposure Bracketing shooting (AEB) function, which is set in the user's own step automatic exposure compensation, the continuous shooting of 3 to 5 photos, allowing users to pick and choose the effect of the closest kind .the years, but there is a problem that flash when turned on can not use AEB function. ...