4K HD Wallpaper: Grjotagja Cave
This cave with clear water can be found in Iceland. Dan captured a 4K image from inside and from his courtesy can be downloaded from here for apply it on personal 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 60D | Lens: 11-16mm | Taken: August 14, 2014
Settings: Aperture: f/9.0 | Exposure time: 30 | Focal Length: 16.0 mm | ISO / Flash: 200 / NO