One of the billions (not really) of windmills at the Palm Springs windmill farm near Whitewater Canyon, CA. I was testing out a rented Canon 100-400 f/4.5-5.6L IS II lens. It's a really heavy lens but man is it sharp.
Riverside, California, United States
Canon 5D mkIII, Canon 100-400 f/4.5-5.6L IS II@200mm, f11@1/80th sec, ISO 200, B+W XS-Pro Kaesemann HTC Polarizer