Is the humidity in Beijing sauna harmful to SLR cameras?

The climate with increased humidity is very unfavorable to SLR cameras and lenses. SLR can really work in many bad weather conditions, such as very cold or very hot temperatures, dustproof and waterproof, and some high-end professional SLR can even splash water directly.

But that's only for short-term shooting needs, and it doesn't mean that the SLR can be impeccable. For example, in hot and humid weather, water molecules are everywhere in the air, and the lens is prone to mildew and film damage due to moisture, while the mechanical parts and electronic devices in the fuselage and lens will be oxidized, rusted, short-circuited and damaged due to moisture.

Your buddy did the right thing. In this case, pulling the camera out for a walk is conducive to eliminating the water vapor inside the camera and keeping the camera lens dry. However, it should be noted that this is not bask in the quilt, and we cannot poison the sun for a long time.

The general storage method of SLR equipment is to use silica gel desiccant and put it in camera bag or drying oven, which needs to be replaced regularly.

Another good way is to use electronic moistureproof box. This moistureproof box needs to be plugged in, and the humidity in the box can be adjusted (47-52 in the north and 42-47 in the south). The electronic moistureproof box has stable humidity and low power consumption. At present, well-known brands include collectors made in Taiwan, Wan Defu made in Guangdong and Huitong.