I've been planning this shoot all week. These dark gray days are a great opportunity for daytime slow shutters. I had planned a really long shot while making dinner—zig-zagging across the kitchen from cutting board to stove to sink, etc. But I overestimated the length of time I'd have given the available light. (I would have had to make dinner in complete darkness!) With my ISO set to 100 and my aperture as closed down as possible (f/16 for this lens), I could get an eight second shutter for the exposure I wanted. Not quite enough time to zig-zag, so I modified my plan to just making coffee and some creepy ghost-like shots. Fun stuff, man.