Location of Photo:
Treguennec, Bretagne, France
Date/Time of photo:
09/07/06 7:00 PM UT
Canon 350D DSLR with Sigma 70-300 APO lens at f/16 set to 200 mm on a tripod. 800. 1/6 second exposure at ISO 800 with auto exposure compensation at -2 EV.
Around and inside the hoop, I have added the umbra and penumbra disks with Photoshop so that it's easy to consider the three diameters.