Aperture invite

Aperture Aporia Afterimage


A video installation by

Linda Corrigan and Nancy Duff

April 20 - 25, 2023, 12–6

Reception April 21, 7–9










VisualSpace Gallery

3352 Dunbar Sreet

Vancouver, BC





A multidisciplinary artist, and self-described “mid-century modern,” Nancy studied Science and Education in the 70s, Architecture in the 80s, and Fine Arts in the 90s. A recipient of travel, research and production grants from the University of California, the Canada Council for the Arts, and the BC Arts Council, Nancy works across the disciplines of painting, drawing, digital media, photography, sculpture, video and installation. She has exhibited her work nationally and internationally.


For 20 years, Nancy taught at post secondary institutions, including Emily Carr University, Simon Fraser University and Kwantlen Polytechnic University, the last 17 as a full time instructor in the Fine Arts Dept. at KPU, teaching painting, drawing, upper year studio, special topics, cultural studies, and field schools abroad.  


Nancy Duff gratefully lives and works on the unceded Indigenous territories of the Musqueam, Squamish, and Tsleil-Waututh First Nations (Vancouver, BC).

Aperture, aporia, and afterimage are three distinct terms related to photography and visual perception.

Aperture refers to the opening in a camera lens that controls the amount of light entering the camera. A larger aperture allows more light to enter the camera, resulting in a brighter and more shallow depth of field, while a smaller aperture limits the amount of light and increases the depth of field.


Aporia is a term used in philosophy to describe a state of puzzlement or perplexity that arises when a person is confronted with a seemingly insoluble problem or paradox. In photography, aporia might refer to the challenge of making an image that captures the essence of a scene or subject.


Afterimage is a visual illusion that occurs when an image continues to appear in one’s vision even after the original stimulus has been removed. This happens when the retina of the eye continues to signal the brain after exposure to a bright image. In photography, afterimage might refer to the lingering impression or emotional impact of an image on the viewer after they have stopped looking at it.


Click to watch a short clip of the Aperture Aporia Afterimage installation.

Or click  to watch the full Aperture Aporia Afterimage video (60 minutes) on Youtube.

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