Why are the photos taken at night blurred?

Insufficient light causes too much noise.

1, you can fix the camera to shoot (or try not to shake your hands);

2. You can also manually adjust the ISO parameters. The lower the ISO parameter, the higher the imaging quality (some mobile phones support manual parameter adjustment).

If you like taking photos at night, you can change to a mobile phone with better ability to take photos at night.

4. Be sure to avoid backlighting when taking pictures. It is best to shoot in the light.

Because photography can control the amount of light entering through the shutter time, only one photo can be generated, so you can take a photo with the lowest ISO and a slow shutter. So all the photos taken are exquisite. ?

Extended data:

cause

Both CCD and CMOS photosensitive elements have thermal pixel problems, which are related to imaging quality and temperature. If the temperature of the machine rises and the noise signal is too strong, it will form mottled spots where it should not be. These points are what we call noise.

Various brands and models of cameras have different noise control capabilities, and cameras of the same model also have certain individual differences, and some cameras have noise reduction functions. However, the noise problem is a problem that all DC's can't completely overcome now (improving the sensitivity (ISO), especially when the exposure time is long or the camera temperature rises). The amount of noise varies with the sensor structure and processor.

Noise caused by long exposure

This phenomenon mainly occurs when shooting low ISO night scenes, and there will be some messy bright spots in the dark night sky. It can be said that the reason is that the processor can't handle the huge workload caused by the slow shutter speed, which leads to some specific pixels out of control. In order to prevent this image noise, some digital cameras are equipped with a function called "noise reduction".

If the noise reduction function is used, the image noise will be eliminated by digital processing before recording, so it will take a little more time before saving. However, with the opening of noise reduction function, the details of the picture will be lost.

References:

Baidu encyclopedia-noise