When it comes to things that should not be photographed with a digital camera, it is "strong light." So-called "sensor burn" is almost not a problem with flashes of light aimed at backlighting or flaring, but if the same spot is exposed to strong light for a long period of time, it will lead to deterioration of the image sensor. "Laser beams" such as events can cause sensor burns Mirrorless single-lens reflex cameras are said to be particularly prone to sensor burns. Mirrorless cameras do not have a reflector (mirror), and the light that enters the image sensor is reflected on the viewfinder and monitor, so the time the light hits the image sensor tends to be longer. The image sensor may be exposed to outside light even when the power is off, so the lens cap prevents the sensor from burning. And sunlight isn't the only cause of sensor burn. For example, "laser beam". Using a digital camera to capture the laser beams used at concerts and other events may cause sensor burnout. Several videos have been uploaded to YouTube that capture the phenomenon of sensor burns caused by laser beams. When you see how the laser beams flying around the concert venue, which are brightly colored at first, change to strange colors over time, you should be able to feel the horror of sensor burn. If you are interested, search YouTube with phrases such as "laser sensor kill".
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