StarTrail 25/26 May 2014, Leicestershire, UK. Reverse curvature startrail captured with Olympus OM-D E-M1 & 7-14mm lens. If you look closely the image contains 1 Iridium flare, 4 meteors and the 0225hrs ISS flyby. A nice composite capture :-) How did I capture it? - Camera on tripod F4, ISO 320, 15s. Manual focus set to infinity I pointed the camera due south to ensure a star reversal curvature. The first shot was captured/exposed through the lcd screen and then using the remote cable (set to lock) and turning off lcd (maximise battery) I depressed shutter. This allowed the camera to shoot continuous for 5 hours.  To complete the process I transferred all images (High res JPEG) to MAC and imported/stacked in StarStax software. Plane trails removed using Pixelmator software. The final composite reveals stars reverse arcing above and below the celestial equator.
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