Rendered in watercolor and graphite on paper, Spencer Finch's "Study for Magic Hour" (2004) belongs to the artist's sustained investigation into the phenomenology of light and color perception. The work captures the transient atmospheric quality of the hour just after sunset, when light loses its source yet retains an uncanny luminosity. Finch approaches this subject with characteristic scientific rigor tempered by lyrical sensitivity, building delicate washes of color that record not simply a visual impression but an attempt to measure and notate an experience that resists exact description. Finch is widely regarded as one of the most thoughtful conceptual artists working with light and perception today, and works on paper occupy a particularly intimate position within his practice. These studies function simultaneously as finished objects and as records of inquiry, reflecting his broader methodology of cross-referencing subjective observation with objective data. The modest scale of this piece, 33 by 27.9 centimeters, draws the viewer into close engagement, rewarding careful looking with the subtle complexity of its tonal relationships. Signed by the artist, this work presents a meaningful opportunity for collectors interested in conceptual practice rooted in close observation of the natural world. Its combination of intellectual seriousness and quiet visual beauty makes it well-suited to collections that value the intersection of art and science, or that seek works by artists whose influence on a generation of perceptually engaged painting and installation has been widely recognized.