Like Download 4.70 MB Markers 4782 x 3333 pixels Aspect ratio 1594:1111 NIKON D610 50 mm f/4.0 1/125 s ISO 800 Online since: 29 June 2018 Taken: 12 June 2018 CC0 / Public Domain office white marker board business drawing background note write school whiteboard education pen space presentation frame