Watch how quickly the Mooney manual gear retracts. This is Frame 0 and the gear is down, as the airplane has just taken off. For reference, notice the tuft of grass ahead of the airplane, on the horizon, and the bale of hay behind the aircraft.
This is 7 frames later (about 1/4 second), and the gear is coming up. Note again the position of the tuft of grass on the horizon and the bale of hay.
This is after another 1/4 second, and the gear is already up.