It occurred to me that perhaps I should explain prior to voting that this is a composite image.
The sparks were made using the angle-grinder in the picture but I couldn't get a satisfactory exposure of both the sparks and the angle-grinder in the one shot.
So........ I took quite a few with a short exposure to get the sparks without over-exposing, then took several more at a longer exposure to show the angle-grinder (the sparks were blown out in those), then combined the best of each into this image.
Both the shot of the sparks and of the angle grinder were taken during the challenge period. The EXIF data being displayed is for the shot of the sparks.
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