Using Dark and Light 1

Illness in the family is keeping me busy, so this will be quick. I saw this photo in the Economist magazine. It reminded me that I should throw out some examples that use dark and light to define an object. You might think that a blue industrial building against a blue sky would yield a building that "melts" into the background. It can, but does not have to. The sky has an amazing amount of variation, even if it is cloudless. Try taking a series of photographs of a clear blue sky, pointing in all directions including straight up. When you compare the photos side by side, you will notice a lighter horizon area, and also a lightening toward the area near the sun. This is not new or earthshaking, but is good to know if you are illustrating architecture. So, if you are interested in making a building stand out you can simply reverse the grading of light to dark so as to make it contrast with the background. Again, simple and obvious, but all too of...