What is the dynamic range of an ordinary camera? How much DB or more is wide dynamic?

Wide dynamic has two units, one is multiple, such as Samsung 160 times, and the other is dB, such as Panasonic's 54dB. There is a conversion formula between the two, even if 20lg (multiple) = (number of dB) db. Just convert it yourself. For example, the wide dynamic of LG is 80dB, and the multiple is the fourth power of 10, which is 10000 times.

DB always defines the unit of power by default, that is, 10*log. Of course, in some cases, work and power can be described by signal strength, and then 20log can be used as the unit of measurement. This is true in the field of control and signal processing.

Extended data:

Simply put, it is the interval in which the brightness values of the brightest and darkest objects in the same picture taken by the camera can display details normally. The larger the dynamic range, the greater the degree to which objects that are too bright or too dark can be displayed normally in the same picture.

For a simple example, in a room without lights, you can see the sunny scenery outside through a small window, and at the same time, you won't shrink your pupils to adapt to the brightness outside the window, but you can't see the window frame clearly. This is the dynamic range of the human eye. When you hold your mobile phone in a range close to your vision and the exposure outside the window is normal, the indoor exposure is insufficient. This is the dynamic range of the mobile phone.