What is the basic operation method of digital camera?

First of all, you need to have a basic understanding of your camera, and you need to figure out which button is used for what. If it is a card machine, it will be easy. Half-press the shutter (you can press it slowly without too much effort, and the first touch you encounter is the stroke of half-press the shutter) to focus. At this time, if the gear is fully exposed, the camera will measure light and dim light at the same time, and the focus frame in the camera will change color (usually green, but some are other colors) so that you can take pictures. If a manual machine is used, in general, first adjust the sensitivity (ISO) according to the site environment. The lower the value, the less noise there is in the picture and the clearer the picture is. Then adjust the aperture or shutter speed according to the mode you choose, adjust the exposure and composition, and then press the shutter. Mainly instructions. If you understand this, you will know how to operate it.