The video features a man demonstrating how to attach a lens to a camera. He starts by holding the camera in his left hand and the lens in his right hand. He then attaches the lens to the camera by aligning it with the lens mount and twisting it clockwise until it clicks into place. The man then shows how to remove the lens by twisting it counterclockwise until it clicks out of place. Throughout the video, he provides verbal instructions and tips for properly attaching and removing the lens.