https://pho.tography.org/tags/wide-aperture/ Recent content in wide aperture on pho.tography.org Hugo -- gohugo.io en-us Sun, 03 May 2026 00:00:00 +0000 https://pho.tography.org/vignetting-as-composition-rf-50mm-f/1.2l-wide-open/ Sun, 03 May 2026 00:00:00 +0000 https://pho.tography.org/vignetting-as-composition-rf-50mm-f/1.2l-wide-open/ The RF 50mm f/1.2L USM vignettes at f/1.2. This is not a defect to correct in post. Left uncorrected, it is a compositional tool that draws the eye toward the center of the frame and applies a graduated darkening to the corners. Canon’s in-camera lens correction and Lightroom’s lens profile will eliminate this automatically if you let them. You should consider not letting them. Optical vignetting at the maximum aperture of a large-diameter lens is a physical consequence of the geometry: light arriving at the sensor from the edges at oblique angles is partially blocked by the lens barrel.