<p>This image is an artist's conception of the Saturn V Spacecraft/Lunar Module Adapter panels separating from the S-IVB stage prior to the astronauts performing the transposition and docking maneuver to extract the Lunar Module in preparation for a lunar landing. Since the crew were facing away from the S-IVB stage at the time, this is something that was never actually photographed.
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Note that the image actually shows Apollo 8, which was the first manned Saturn V launch, the first mission to separate the SLA panels from the S-IVB, and didn't carry a real Lunar Module. Instead a mockup of similar size and weight distribution was installed in the S-IVB: without it the weight of the Saturn V would have been outside normal limits, which would have affected the trajectory and stresses on the rocket stages.
North American Rockwell
1968-12-02
<a rel="nofollow" class="external free" href="https://images.nasa.gov/details-S68-51306">https://images.nasa.gov/details-S68-51306</a>; see also <a rel="nofollow" class="external free" href="http://images.jsc.nasa.gov/luceneweb/fullimage.jsp?photoId=S68-51306">http://images.jsc.nasa.gov/luceneweb/fullimage.jsp?photoId=S68-51306</a>