From tonight's photo workshop at Twin Peaks, some light trails provided by the passing cars.
Lens is the Sigma 10-20 on the Pentax K5.

Thanks for looking! If you live near or will be visiting San Francisco, pm me about upcoming night photography workshops, thanks!
<a href="http://mikeoria.zenfolio.com/night-eyes-photo-workshops" rel="nofollow">mikeoria.zenfolio.com/night-eyes-photo-workshops</a>