The ceiling fan in our computer room at home. Extremely boring subject and pictures, but I wanted something for my get pushed challenge: to show speed. I took the pictures at various ISO settings, starting with 100 seen in the upper left and progressing to 1600 (or in one case 3200, though I'm not sure I included that one here) trying to see at what setting the blades would appear without motion blur. I stuck other versions in with varying hue, contrast, saturation etc. I figured I might as well get double duty from this and use it for the current ETSOOI challenge with the theme of light.
@tstb Tineke, here is something in response to the challenge you gave me. If I have the time and the opportunity, I may try to get something else that's different.
