Tips for taking photos with a SLR camera on a cloudy day

On cloudy days, the light is relatively dark, so the ISO can be raised appropriately, about 400.

Since the color temperature is higher on cloudy days and the picture is bluish, the white balance must be selected for cloudy days. On cloudy days, the color temperature is very high, probably above 6000K. The picture taken on a cloudy day will be bluish and white, so in order to make the picture more natural, you must adjust the settings. It would be more accurate if you can use custom white balance.

The color of the light source is often expressed by the concept of color temperature. When the color temperature is <3000K (that is, on a sunny day), the picture taken is reddish white; when the color temperature is 3000-5000K, the picture is white; when the color temperature is <3000K (that is, on a cloudy day), the picture is blue.

In addition, when shooting on a cloudy day, you need to increase the aperture by one stop. The larger the aperture, the more light the camera can accommodate, so the scene captured by the camera will be brighter. In addition, the shutter and aperture can also be set by looking at the light meter in the viewfinder.

ISO means sensitivity. There are several types of film such as ISO100, 200 and 400, which are films with different light-sensitive speeds. ISO sensitivity is the sensitivity of the photosensitive element to light. If the camera can expose correctly in 2 seconds with the ISO100 setting, it only takes 1 second with the ISO200 setting under the same lighting conditions, and 0.5 seconds with the ISO400 setting.

The main menu of digital cameras has ISO options, 100, 200, 400 or 800. Depending on the model, the low one is ISO50, and the high one is 25600. The higher the number, the more sensitive it is (the higher the sensitivity). Although a high ISO can achieve a faster shutter speed, the image noise is obvious and cannot withstand fine enlargement.

So for landscape photography, you need to use the lowest sensitivity of the camera to get a detailed picture. High ISO is generally used only as a last resort.

Reference: Baidu Encyclopedia-Single Lens Reflex Camera