I hate screws. They're too hard to take pictures of. Between hot spots and the fact that the reflections match the background, processing becomes impossible. Never mind that there's a lot more imprefection in the metal then you ever notice with the naked eye. This was the best I could do after about 150 pictures and 6 hours of shooting.
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Pretty good control of the light here. It would be more interesting, IMO, from a less usual POV, and maybe let depth of field come into play. A good fit for the challenge.