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Monday, 18 April 2011

Photography histogram

The key sony np-fm50 battery is to understand the histogram, see the left and right in the histogram of what happened. If you compare the average exposure of a photo and image data is very good, then it will be displayed as a histogram in the above baseline. Icon from left to right, the entire chart would look more balanced, there is no data in the brightness of the left or right biased. You know, for a wide range of brightness of the scene, this situation will happen. However, not every scene photos taken in dark or bright scene, will be in the side or the other side of the histogram revealed.

One thing is critical: in a photograph, it is important tone brightness region should be fully in the range of the histogram between left and right. In other words. The tone of these regions can not be an abrupt end on either side of the histogram, because the details here are very important. Histogram is the same as long as the stop at either side of the cliff, not the same as the hillside gradually reduced, which means that exposure to photographs of some of the details, "clip" out.

This is what you have trouble in the exposed areas. In the "Cliff" to the right, all the data disappeared because of over-exposure, and appeared in the photo is part of all the details out of sight. If the data is not captured, they will never recover. Some cameras sony np-qm91d battery will be flashing in these areas through to warn you there are overexposed. The "cliff" on the left all the data will disappear, the camera did not capture any data in these areas, you can see in the picture is dark. If the dark (left) or bright (right) details of the region is very important to you, you will need to adjust the slope of re-exposure method to appear in the histogram.

Details of the arrangement of the histogram can also help you to assess the exposure of photos. If you're shooting a bright scene, then the histogram will be biased towards the right side of most of the data - the photo is the bright part of the data will appear in this section. As bright when shooting your subject is easy to lack of exposure, these data may be biased to the left of the histogram. This is a problem when you in the computer post-production on the photos, it will give you the trouble. For the dark part of the shooting scene, the situation is the same. In metering, these regional trends will have too much exposure, resulting in the histogram data is biased towards the right side, which is the bright part of the phenomenon, and not in their original should be in the left. Under a bright scene photos taken in the histogram should have most of the data on the right side; in a dark scene photographs in the histogram should have most of the data is located on the left.sony np-fh50 battery

LCD and histogram is a big advantage, you can shoot in the automatic mode and use the camera all the computer functions and metering system, you have to do is occasionally check the exposure, and thus are never too light question surprised. Camcorder Battery

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