Selective depth of field

This image shows just how much selectively-used depth of field can focus the viewer’s attention—without consciously resisting, the eye is forced to the bright and relatively sharp center. The effect is usually not seen this way with subject matter both blurry and sharp at the same distance; it causes tremendous visual tension (for me at least).

Treetops
Canon EOS 1Ds Mark III + 85mm f/1.2L II @ f/1.2