This is a combination of two hand-held shots. The carousel in the foreground was photographed at 3 seconds and f/22 at ISO 64. The three second exposure produced the filigree effect. The Eiffel Tower in the background was shot at a relatively stable and sober 1/5 of a second and f/8 at ISO 200. The two exposures were combined in Photoshop.
By the way, I’ve been asked if I am in Paris because of the Paris photos that are appearing on my blog such as Beneath the Pont de la Concorde. No, I am home in California, and just working through and processing some images from the last few years.