How does it work? You can regard the Program as a more advanced version of the automatic mode, because the camera still handle the exposure for pictures automatically. Point the camera on the view and press the shutter slowly to enable metering, and aperture and shutter speed are set automatically to get exposure.
There are three main settings on the camera determines the exposure, i.e., aperture, shutter speed, and ISO. The aperture can be said to be a hole on the lens, and can be set to be wider or narrower to control the amount of light that enters the camera on. Shutter speed determines how long the image sensor in the camera exposed with light. Lastly, the ISO setting determines the level of the sensor's sensitivity to light. The higher the ISO, the less light is needed to make the exposure.
The key is balancing these three elements. If a setting is changed, one of the other settings will also need to be changed to get the desired overall exposure. On each condition, there is some combination of aperture, shutter speed, and ISO that will produce the same exposure level, but each combination will give you a different look and impression on the photo.
Complementing its role in determining the exposure, aperture also affects how many views that are displayed sharply focused. Aperture width reduces ' depth of field ', while the narrow aperture increase it. Shutter speed used to create photos that freeze the moment or to create artistically blur photos. Finally, ISO affect photo quality, with the consequences of high ISO setting result in photo contains a lot of noise.
Why Choose Program Mode
The mode of the Program does not smart enough to identify the object type that is recorded, so that the camera determines the combination of aperture and shutter speed which will give you the exposure that ' true ' is based on the ISO setting, the lighting conditions, and the lens used.The mode of the Program designed to generate depth of field are, together with the shutter speed fast enough to avoid the shocks of the camera. If the exposure is too long, you may not be able to hold the camera steady with, and as a result the photo blur.
The principle is to use a shutter speed of at least equal to the effective focal length lens. For example, a 200 mm lens on full-frame cameras like the Nikon D800 will produce sharp photos with the camera lay hands on a shutter speed of 1/200 seconds or faster. The mode of the Program know the focal length lens mounted on the camera and will usually choose the aperture that is wide enough to reach the shutter speed with the speed that is safe for a photo shoot with the camera lay on hands.
Because only select the aperture and shutter speed are done this program. Camera settings such as ISO, white balance, metering pattern, and flash settings can be set manually. Users can also change the combination of aperture and shutter speed that the camera selected using the Shift or Programs Flexible Program. When he wanted to choose the aperture or shutter speed, simply turn the camera on the setting dial tobol ' shift '. Rotate it to one direction to select a smaller aperture and shutter speed is slower, and rotate it the other way will choose aperture and shutter speed more faster.
Yes, it's true. Photos of under-exposed (too dark) or over-exposed (too bright) cannot be repaired using the Program mode, because it still uses the recommended camera exposure, aperture/shutter combination only speed different course titles. To change the overall brightness, Exposure Compensation function required the use of a camera. Press the button marked ' +/-' and turn the play button of the camera, as well as note the exposure meter on the viewfinder as guide.
Program Versus Auto
Equally berisfat automatically, then what difference does it make Auto mode with the Program? It looks similar, but the Program gave greater leeway. Program mode gives a higher level of control. As can be seen, there are several other controls that can be modified, with the ISO and flash that may be the most significant. In Full Auto mode, the flash will be triggered when the camera decided that light level is too low, but on the Program You choose when aiming his need to flash (allows you to use it for a memperterang portrait with backlit, for example).
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