视频展示了一只手正在操作一个闪光灯设备。闪光灯设备的型号是V1，品牌标志清晰可见。手部动作显示正在调整闪光灯上的按钮和旋钮，可能是在设置闪光灯的参数或模式。屏幕上显示了TTL、28、-1.3等信息，表明正在进行曝光补偿或其他摄影参数的调整。背景为深色，突出了闪光灯设备和手部操作的细节。
The video shows a person operating a camera with an attached flash unit. The camera is being held in one hand, while the other hand adjusts the settings on the camera's control panel. The screen on the back of the camera displays various settings, and the person is using their fingers to press buttons and turn dials to change these settings. The flash unit is labeled "V1" and appears to be securely attached to the camera. The background is a plain, dark surface, which helps to focus attention on the camera and the person's hands.
A person uses their right hand to open the back cover of a black device, revealing a screen and several buttons. The person then touches the screen with their right index finger, causing the screen to light up briefly. The person continues to press various buttons on the device, and the screen displays different settings and information.