Thanks P and C and Dave, glad you liked them. The animation is fairly time consuming to generate, maybe there's an easier way of producing them to the way I do it. Two issues that stand out are getting each frame to look the same and reducing the GIF to under 200kbs without it being too small to view. Even with the care I took with this one, the colour balance varies slightly between frames, not to mention seeing conditions for each frame can vary considerably over the capture duration. The result is an old movie film type look!