These Lunar 3D shots are true stereo images of the moon formed by taking two individual shots of the moon some weeks apart, sometimes months, and relying on the lunar libration (i.e. apparent "wobble") to provide a change in viewpoint.

This is not a new technique, in fact the first such stereo was made in USA of the full moon in 1864 by the photographer L.M. Rutherford.  His stereo image was of a X-eye pair but I have re-processed that as a Red-Cyan anaglyph: I hope he will forgive me !  It is the 1st image in the Gallery.

The technique involves a number of stages and various calculations to work out how to correctly align the images as a stereo pair.  The individual left and right-eye image alignment depends on where on the earth the viewpoint is, the time of observation and the lunar libration data.

Once these factors are taken into account the individual images can be rotated by the calculated angle and only once that is done, fed into a standard 3D Stereo program to make the final alignment tweaks.

The collection was built up over a number of years, and is still growing, to try and get different moon-phases, not just full-moon.

Poor viewing conditions, poor weather and unsuitable libration differences can make it all quite a lengthy process to find two similar phase shots that are suitable to form a stereo pair.

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