James Nizam is showing (4 - 26 May, 2012) at Gallery Jones "Trace Heavens", an exhibition consisting in a photograph series about his very impressive geometric light sculptures made using directly the sunlight. I found a really good information about "Trace Heavens" and its process at Canadian Art;
"The large black and white photographs depict the transformation of darkened rooms into uncanny light sculptures that intersect elegant geometry with math-class daydreaming. Bridling sunlight into streamlined rays via perforated and sliced walls, and with the aid of artificial fog to intensify the slants of light, Nizam creates imagery that might bend our perception of photography." See more;
"The majority of works in the exhibition were created in a darkened studio space where small mirrors were fastened to ball joints for easy pivoting, perfect for manipulating the light streaming through holes in the walls (see Drill Holes Through Studio Wall) The logistics were no small feat; Nizam sometimes had as little as five minutes of perfect sunlight in which to create his images. And the process of waiting for those brief periods no doubt felt like déjà vu for a photographer who has spent plenty of time in dim rooms watching dust dancing in sunlight." More info at Canadian Art.