A small poster advertises a survey on back pain. It’s a 3 year programme and since this was taken in 2007 it’s nearing completion now! Taken somewhere in San Francisco. Aperture ƒ/4 Camera Canon EOS 20D Focal length 10mm ISO 100 Shutter speed 1/160s
Except where stated in the post, photos posted on or after January 1st, 2014 are licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. Basically, do what you like with those images but always credit Donncha Ó Caoimh as the author and link here. You'll also have to license the photo under the same license.