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  Here we see a painting in position.  Vertical format paintings are photographed 
on their sides rather than turning the camera and messing up the alignment.  Rotating 
the digital file 90º later is a trivial exercise. There are two strips above and below 
the painting, one is an 11-step gray scale and the other has red. blue, yellow, black, 
white and 18% gray patches to provide some references for post-processing.