What are the basic terms of photography?

Shutter speed is the time from lens opening to lens closing. The shutter speed of moving objects will be fast or blurred, and the shutter speed of moving tracks will be slow or the tracks will not be visible.

Sensitivity (ISO) refers to the sensitivity of a lens to light. Where the light is insufficient, the sensitivity should be appropriately increased, but not too high, otherwise there will be a lot of noise in the picture, and it is best to control it below 400.

Exposure compensation (EV) refers to the operation of manually brightening or dimming the picture. For example, when shooting a snow scene, the machine will think that the environment is brighter and will automatically reduce the exposure. At this time, it is necessary to artificially increase the exposure compensation, re-shoot, and restore the white of the snow.