Even an object with very limited three-dimensionality needs good depth of focus when photographed up close. I shot this detail of a pulpit decorated by Tiffany using an aperture of f/4.0. I thought this would give me sufficient depth of focus for a subject which was only an inch deep. But because my camera was only 6 inches away, I needed more depth of focus.The green glass is sharp but the slightly recessed dark blue glass is blurred. The solution was a second shot taken at f /7.1 (not shown here).
