What are the characteristics of digital photography? What are the main performance indicators of digital cameras?

A camera whose output signal is an analog signal is called an analog camera.

On the contrary, it is a digital camera.

Line 768,

1 10,000 pixels refers to the resolution.

The thread is in the projector,

It's used more on TV.

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Analog cameras are simpler and cheaper than digital cameras. However, there are great limitations in resolution (number of TV lines) and frame rate, and the noise of analog cameras is also relatively large. For a digital camera, the time for the video signal to arrive at the output device is almost the same as the time for leaving the camera. Compared with analog cameras, digital cameras can provide higher resolution, faster frame rate, less noise and more functions. Of course, all this comes at a price: digital cameras are usually much more expensive than analog cameras. Digital cameras include more complicated settings, even for video systems that only need basic functions. In many cases, digital cameras are limited by the length of cables. Of course, if the digital camera you use is an ieee 1394(firewire) interface or a usb interface, then you don't need an image acquisition card to directly connect to the computer.