I was working at the table when i saw a strange object outside the window moving at a speed of a hundred kilometers per hour. i managed to turn on the camera and decided to record the video, there was not time for the pictures, although they had more resolution. the focal length of the lens is 90 mm diaphragm 5.4. when the object was clearly visible, the ufo suddenly disappeared from the field of view and the lens. the object moved in one direction and did not turn anywhere, i pointed the camera to the sky where it moved but it was not in it. i turned the lens back and also down and up but the ufo disappeared.