In a nutshell, Lighttrail photos are very simple. Long exposure time, manual focus, low ISO and an aperture of f8 or more. But, you can hardly foresee what really will be on the photo. Therefore I am glad that my Olympus camera has the Live Composite function, where you can watch on the display how the picture is taken and you can stop the exposure in time before it gets too bright. I don’t want to miss this function anymore.