My 2nd attempt at Star Trails + fireflies, these are cooler than before. Jam on Ziggy with the spider from Mars! T1i + 15-85 @ 15mm, each 20 sec exposure, over 370 images, just over 2 hrs of images. Captured as RAW, import into Aperture 3, no PP whatsoever, just export as TIFF for StarStax to make startrails. Time Lapse Assembler, iMovie11. All done in Mac OsX.