Photographing skills of SLR camera on cloudy days

When the light is dim on cloudy days, ISO can be raised a little, about 400.

Because the color temperature is high on cloudy days and the picture is blue, white balance must be chosen on cloudy days. On cloudy days, the color temperature is very high, about above 6000k K K. On cloudy days, the picture will be blue and white, so in order to make the picture more natural, it is necessary to shift gears. It will be more accurate if you can use a custom white balance.

The color of light source is often expressed by the concept of color temperature. When the color temperature

In addition, cloudy shooting also needs to adjust the aperture by one gear. The larger the aperture, the more light the camera can hold, so that the scene taken by the camera will be brighter. In addition, you can also set the exposure meter in the shutter and aperture frame.

ISO stands for sensitivity. There are several kinds of films, such as ISO 100, 200, 400, all of which have different photosensitive speeds. ISO sensitivity is the sensitivity of photosensitive elements to light. If the camera can correctly expose within 2 seconds under the setting of ISO 100, it only needs 1 second under the setting of ISO200, and it only needs 0.5 second under the same lighting conditions with ISO400.

There are ISO options in the main menu of digital cameras, 100, 200, 400 or 800. Depending on the model, from ISO50 to 25600, the higher the number, the more sensitive it is. Although high ISO can get a faster shutter speed, the image noise particles are obvious and can't stand fine magnification.

Therefore, landscape photography needs the lowest sensitivity of the camera to get a fine picture. High ISO is usually used only as a last resort.

References:

Baidu Encyclopedia-Single lens reflex camera