Chenes Temple, west facade, Adivino Pyramid, Uxmal, orthophoto.  This image was made using
           the Leica Helava all digital 3-D photogrammetric system.  The two images used to make this
           measurable photograph were corrected in 3 dimensions by the Helava system so that scaled
           drawings can be made.  On close inspection of the image black-and-white survey control targets
           can be seen, and the cross on the doorway lintel is one of fifteen used to control for film expansion
           or contraction.  Photo was taken by Paul Bryan using a Rollei 6006 medium format calibrated
           photogrammetric camera.  ( (C) Copyright 1999 Paul Bryan & Roberto Centeno L.)