Photography Introduction, White Balance
For example, if you are on the drawing, clearly is a red flowers
, and because you can't adjust the pigment that kind of red, so your painting sure to have a blank. Therefore, the DC white balance technology, also is to make the suitable adjustments to the photographer was light and color of the technology. In other words, the lighting conditions at that time, how to make a white paper better original itself just.
White Balance namely White Balance, this concept from the use of digital camera. In the digital photography, if white reduction right, other color reduction is basic correctly, can appear otherwise partial color. We know, different light source emit light tonal is different, the color of the object projection for the different light color changes, the same object in the case of the different light shooting out of the picture will have different color. The human eye can identify all sorts of color, and DC of CCD do not have this kind of function; In order to let the image taken from DC color and the human eye to see the same basic needs to "white balance" to adjust. White balance can make DC in various light conditions, the photos taken from human eye color and see the same basic.
If using a traditional camera, we can only use the sun light type of film type or add some color to adjust color temperature. DC in color temperature adjustment of convenient place is in the camera can be directly white balance Settings, the colour of furniture more accurately reproduce. We usually when photography can simply use automatic white balance, automatic white balance is DC according to the current picture, find out the window (white) and the most the dark spots (black spots), then this is good at two temperature. Using automatic white balance can deal with many of the usually filming, clap a photo of the result is right also.
But, to be automatic white balance while convenient, but accuracy is limited, so now the DC except to be automatic white balance presets the outside also sunlight, cloudy, incandescent lamp, fluorescent lamp and so on many kinds of custom white balance, let the photographer can according to different illumination condition choose appropriate white balance. In real life, the light conditions is varied, lamp types are also different, so a lot of DC and add manual white balance function, which according to the standard set white white balance parameters. In the shooting scene light conditions, with DC at the scene of the pure white objects, and full of DC frame, range scenery, manual white balance adjustment.
In addition, we can be taken when the flexible use of white balance.
In the use of flash filming, because electronic flash give off light colour temperature and sunlight basic same, so should be the white balance Settings for the light of the sun, even in shooting night should so, such Settings to close range of colour character is better also reduction, and vision in the photograph light average performance is warm yellow, for most people like. If you are shooting night vision and no close range only words of characters, can put the white balance Settings for incandescent lamp.
Flowers and plants is photography lovers often shooting of thing, don't PaiHua with automatic white balance, according to the light source of adjustment will do at that time. If PaiHua in sunlight and the white balance Settings for incandescent lamp, can let white flowers shooting out take some blue, like valentine's day flower shop sell "blue demon's".
Now school classroom, unit basic office is to use fluorescent lamp lighting. Fluorescent lamp look is white, is actually our eyes in the "automatic white balance". The light of the fluorescent lamp spectrum is not continuous spectrum, can use to approximate colour temperature about 4000 K to said. At the sunlight when shooting can set the white balance for fluorescent lamp; If you don't think to clap out photos a little partial green, also can set the white balance for daylight, and then in front of the lens and a special filter of fluorescent lamp, it is the product red (Magenta), just on the market do not always have to sell.
During the filming sunrise or sunset, colour temperature is lower, don't use automatic white balance, and do not set to incandescent lamp, and should set to sunlight. Such pictures of clap out effect will be more red some, more in line with the sunrise or sunset when the atmosphere.
Say something simple, actually in the practical application of a protean combination to get protean photography effect, in fact all apparent changes the Pope, all of these changes and combination, the only aim is to have exposure accurate photos, plus the photographer of the original thinking composition, so a good PP also appeared in before the people. DC is convenient, we don't blind worship of professional DC, although professional DC can bring the photographer more creative inspiration, but later processing is can make up the drawbacks of the shooting. So, whether you are now use what DC, actually he is a rich content of the pen, and make its full is the cameramen itself.
Mystery about photography understanding is that the "original vision, is better than a professional lens". The mystery is also hope the article to bring you more is the thought active, not puzzled by DC machines all kinds of technical parameters of bondage.
by: baby
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