This is a macro of the front panel connectors on a motherboard.
This section is in fact only about 3 centimetres from end to end (left to right).
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Nothing wrong with this shot at all. The only reason I can figure it didn't score higher is maybe not abstract enough for this crowd, or too abstract, or who knows? Clean and sharp, very well lit, and quite interesting!
Very nice but how did you get inside my computer... The DOF adds deffinition to the pins which I like, the one improvement I would suggest is to crop both sides evenly.