Why are half the photos taken by Nikon d800 black? The whole photo is half good and half black.

If it is half bright and half dark, it is mostly caused by flash photography of an external single-contact flash, and the shutter speed exceeds the flash synchronization speed of 1/250 seconds. If Nikon's special multi-contact flash is used, the machine will automatically reduce the shutter speed after detecting the external flash to ensure the synchronization of the flash, and there will be no half-light and half-darkness.

Flash photography refers to photography with flash as one of the light sources. Flash is the most commonly used photographic accessory. Modern advanced flashlights have various flashing functions, and single or multiple lamps can achieve quite perfect light distribution effect.

Shutter speed is an important parameter of digital camera shutter, and the shutter speed of different models of digital cameras is completely different. Therefore, when using a certain type of digital camera to shoot a scene, we must first understand its shutter speed, because only by considering the start time of the shutter and grasping the release time of the shutter can we capture a vivid picture.