How to control exposure in foggy and snowy weather?

Winter photography is very different from spring, summer and autumn. In winter, the light is soft and the illumination is low, so it is necessary to prevent insufficient manual exposure. In winter, the weather is cold, and the light time suitable for shooting is short, only four or five hours. For landscape photography, it is necessary not only to be cold outside but also to be hot inside, so as not to miss the precious time of taking pictures. 1. Fine and uneven. The most important thing to take pictures in the mist is to have a delicate level. Fog obviously reduces the contrast of the shooting scene. In normal sunlight, the brightness ratio of general scenery is 1: 300. Although strong light and deepest shadows rarely appear in exposure latitude, you can still get satisfactory results as long as you pay attention to correct exposure. 2. Fog scene with small contrast. Mist can greatly reduce the contrast between strong light and shadow, making them both close to the middle tone.