Animation of four photos from Apollo 10 showing Sinus Medii from low altitude.  Approaching from west.  Acquired by the crew in order to prepare for possible landing at Apollo Landing Site 3 (ALS3) in Sinus Medii.
NASA
National Archives and Records Administration, Apollo 10 photography, frames AS10-32-4853, AS10-32-4854, AS10-32-4855, AS10-32-4856