4K HD Wallpaper: Excavator
Even an excavator can look really great in a 4K image if you know where to do the image :). Download the picture if you like under CC By-Sa license from courtesy of Pal-Kristian Hamre and use it as desktop backgrounds and homescreen phones.
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 II | Lens: EF17-40mm f/4L USM | Taken: May 24, 2011
Settings: Aperture: f/4.0 | Exposure time: 1/400 | Focal Length: 17.0 mm | ISO / Flash: 160 / NO