Playing around in Hollydays with the Christmass tree decorations. I mounted the camera on a tripod and set the shutter speed at 1.3 seconds. There was low light, so no need to use a small aperture setting. I released the shutter and zoomed in from 18 to 55 milimiters (I used a kit lens) to get this effect. I could have done it very easy in Photoshop with radial blur, but this way was much more fun. After some trial and error I got this and other images. Postprocess was very simple.
This photo was taken with a Canon 80D.