Manual exposure mode means that the photographer needs to set the aperture coefficient manually when shooting.

Manual exposure mode means that the photographer needs to set the aperture coefficient and shutter speed manually when shooting.

Manual exposure mode allows the photographer to fully control the exposure settings of the camera. In this mode, the photographer needs to manually adjust the aperture coefficient and shutter speed to determine the appropriate exposure. Aperture controls the amount of light entering the lens and determines the depth of field and brightness of light; Shutter speed controls the exposure time of photosensitive elements (such as sensors or films). Manual exposure mode is suitable for scenes that need accurate control of exposure, such as special lighting conditions or photographers with specific creative composition requirements. This model allows more creative freedom, but requires photographers to have higher technical level and experience.