Start your photos at zero on the emissions so the are coming
toward you,
when you feel it's long enough set the emission back to
zero and they will past the CAM, leaving the screen blank,
Then drop that comp into a new comp (or Render it) put a
marker in the center of your timeline on the layer, duplicate
the layer. now off set so that the beginning just behind the
end,use the layer markers to set your in and out points,
however, set you out point 1 frame back from the end marker.
This should give you seamless loop
Good luck
Chris
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R.Christopher Biggs
Digital Ronin