GanGuangDu called ISO value,CANON PowerShot S410 Charger is a measure of the degree of light sensitive film parameters, digital camera in the definition of the same film and ISO, representing the CCD or CMOS photographic of components of the photographic degree, the more that the numerical ISO as sensitive material the photosensitive stronger ability. In the digital camera inside, through the adjustment of the size of the GanGuangDu, can change the brightness of the photo. So GanGuangDu also became indirectly control the luminosity of the numerical picture.
ISO values can control the exposure,canon powershot sd630 charger usually adds a ISO values, aperture is a narrow, or improve a shutter, and vice versa. Generally, the shooting sports or objects in the insufficient light produced, GanGuangDu Settings should be high some, because GanGuangDu high, and a shutter speed can be increased at the same time, the stability of the picture. But high GanGuangDu will make photographs pixels increased, reduce the clarity of the picture. Instead, GanGuangDu is lower, the screen pixels is less, the quality more exquisite, but this situation is not suitable for shooting sports objects and AnGuang environment photography.
ISO formulas for the S = 0.8 / H canon powershot s40 charger(S GanGuangDu, H for the exposure), for GanGuangDu are still not familiar with the standard of the people can refer to set up ISO values, in the sunny day or cloudy under the condition of light outdoor, the use of 100 or 200 ISO GanGuangDu; In the cloudy or rainy outside, use between 200 and 400 ISO GanGuangDu, under natural conditions in the indoor or the evening the light, use 400 or 800 ISO GanGuangDu.
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