Ambient exposure compensation
A function that adjusts the ambient exposure through the aperture and shutter speed without adjusting the flash output. This feature affects the brightness of the foreground and background, and helps illuminate the background during complementary flash photography.
All light from natural and artificial light sources in various shooting environments, excluding the light source provided by the photographer's flash unit.
Auto flash metering
The camera's light sensor measures the light reflected by the subject after the flash, and then directly controls the flash output to obtain a suitable flash exposure.
One or more flash units fire at high speeds and repeat to simulate longer-lasting flashes. This technology facilitates high-speed synchronization and analog flash.
The main flash starts after the pre-flash in actual shooting.
Light is reflected back from the ceiling, wall, or other surface to soften the light shining on the subject. Compared to direct flash, the brightness of reflected light is also reduced, so you need to adjust the aperture or ISO sensitivity setting.
A function to adjust the surrounding exposure through aperture and shutter speed. Since the aperture automatically controls the flash output, there is no need to apply flash exposure compensation.