Portland Fleet Week 2015 — photo 19 of 65: Due to the optical illusion of foreshortening, the 22.5-foot barrel on this 5"/54 caliber Mark 45 gun looks much shorter. As seen on the USS Chosin (CG-65) — a U.S. Navy Ticonderoga-class cruiser — from Steel Bridge, while the ship was docked along the Tom McCall Waterfront Park on the west bank of the Willamette River in downtown Portland, Oregon, during the Rose Festival Fleet Week. June 2015. Camera used: Olympus OM-D E-M5 with Panasonic Lumix 100-300mm f/4.0-5.6 zoom lens.
For further details about the story behind this photo, see the related article Big Ships and Big Bubbles.