4K HD Wallpaper: Arrows
The photography was taken by Javier Morales and can be downloaded from his courtesy under CC BY license. Here's optimized especially for use as desktop background and homescreen phone.
Widescreen Desktop / Macbook (Retina): 2880x1800 (fits on: 2560x1600, 1920x1200, 1440x900)
High Definition HD 1080p: 1920x1080 (fits on: 1600x900, 1366x768, 1280x720)
Samsung Galaxy Tab & iPad: 2048x2048 (compatible with almost all tablets)
HTC, Samsung Galaxy & iPhone: 1080x1920 (compatible with many smartphones)
Camera: Nikon D3100 | Taken: August 17, 2012
Settings: Aperture: f/1.8 | Exposure time: 1/125 | Focal Length: 50.0 mm | ISO / Flash: 100 / NO