摄影测光法宝灰卡使用入门!（Photography, metering, magic, use of grey cards!）.docVIP

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2017-09-23 发布于河南
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摄影测光法宝灰卡使用入门!（Photography, metering, magic, use of grey cards!）.doc

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摄影测光法宝灰卡使用入门!（Photography, metering, magic, use of grey cards!）

摄影测光法宝灰卡使用入门!（Photography, metering, magic, use of grey cards!） A grey card is a baseline for accurate exposure detection. Layers of rich, color saturated photos come from accurate exposure. If the light of the shooting scene is too bright or too dark, it may lead to a deviation of exposure. The gray card can balance the scene of complex light to 18% neutral gray. By recording the reflected light of the gray card, the accurate exposure value can be obtained! The gray card is suitable for hand-held light meter, TTL SLR camera and side camera with photometry. Using gray cards is a guarantee for shooting high-quality photos, and is an essential tool for photographers! So, how do you use grey card? Determine exposure values Set the meter to measure the reflected light (remove the white reflector). In order to obtain accurate metering values, the illumination of the card and the object will be ensured from the same direction. When measuring the value, make sure that the distance between the meter and the grey card is within 15 centimeters, and that other bright light should be avoided to reflect on the grey card or to cast its shadow on the gray card. Measuring the studio light, should be placed in front of the object by the gray card and as close to the subject. At the same time, the gray surface of the gray card is rotated so that an angle and an elevation angle can be formed between the gray card and the camera and the light source. The angle of the isosceles triangle is generally 30 degrees -45 degrees, and the direction of the gray card shall be 1 / 3 of the angle between the camera and the main light source. The usual light position is the secondary light and should be closer to the cameras optical axis. Under natural light, the gray card can be placed in the position of the object to be photographed or placed in the position of the camera to measure the value. However, the intensity of illumination obtained on the grey card must be consistent with the intensity of