A freshly minted and properly gapped spark plug ready to go in my Nissan along with five others when I can find some spare time. This was shot with my Dad's early 1970's Nikkor 55mm Macro f/3.5 AI Converted with M2 Ring and Nikkor 3.0 Diopter Close-Up Attachment. All manual settings of course. This was at f/32 for about 10 Seconds under a desk lamp without any enlargement.