Continental re-enactors with a three-pounder (Credit: Dori / CC BY-SA 3.0 US [https://creativecommons.org/licenses/by-sa/3.0/us/deed.en]) Patriot_cannon_placement Technical Details Camera: Canon EOS DIGITAL REBEL XT Taken: August 31, 2008 Focal length: 105mm Aperture: f/8 Exposure: 1/200 second ISO: 400
