4K HD Wallpaper: Long Exposure of Traffic Lights
The photography is from I-285 Highway and was taken by John Murphy. Looks really good as desktop background, but also it's optimized for phone backgrounds. From John's courtesy the 4K image can be saved under CC By-Sa license.
Widescreen Desktop / Macbook (Retina): 2880x1800 (fits on: 2560x1600, 1920x1200, 1440x900)
High Definition HD 1080p: 1920x1080 (fits on: 1600x900, 1366x768, 1280x720)
Samsung Galaxy Tab & iPad: 2048x1536 (compatible with almost all tablets)
HTC, Samsung Galaxy & iPhone: 1080x1920 (compatible with many smartphones)
Camera: Canon EOS 5D Mark III | Taken: June 20, 2014
Settings: Aperture: f/18.0 | Exposure time: 119.5s | Focal Length: 105.0 mm | ISO / Flash: 100 / NO