This photo was shot with the handy EF 24-105mm f/4L IS general purpose zoom lens mounted on the Canon EOS-1D Mark III.
It was shot in RAW and processed through Adobe Photoshop's RAW converter using the "B&W with red filter" setting.
Like I usually do, I have the 1D Mk3 set up to record both a RAW file and a high res monochrome JPEG. Even though I (almost) never use the straight-out-of-camera JPEG, this ensures that the image shown on the back of the camera is in monochrome and helps me keep my head in that B&W mode, looking for light, shadow, and texture rather than colors.
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