International Space Station 180mm Photograph

Image credit:  Image Science and Analysis Laboratory, NASA Johnson Space Center (http://eol.jsc.nasa.gov)

TULUM - 20.22N, 87.43W

Link is to the Wikipedia page on the history of Tulum.

SAMPLE #2

ZERO MAGNIFICATION IMAGE

REFLECTANCE SPECTRUM

1X MAGNIFICATION (RED LINE  = 1MM)

3X MAGNIFICATION (RED LINE  = 1MM)