This is a crop from an image I made at Gallo Cliff Shelter at Chaco Canyon in 2009, using my Tokina 12-24mm. The lens has nine curved aperture blades, but at smaller apertures, it can be coaxed into making nice sunstars like this one.

This is a crop from an image I made at Gallo Cliff Shelter at Chaco Canyon in 2009, using my Tokina 12-24mm. The lens has nine curved aperture blades, but at smaller apertures, it can be coaxed into making nice sunstars like this one.

This is a crop from an image I made at Gallo Cliff Shelter at Chaco Canyon in 2009, using my Tokina 12-24mm. The lens has nine curved aperture blades, but at smaller apertures, it can be coaxed into making nice sunstars like this one.