Details:

(Top)  Canon EOS 10D,  shutter 1/350 second, aperture f11, ISO 1600, Canon EF 100 mm macro lens, no flash.

(Bottom)  Canon EOS 10D,  shutter 1/180 second, aperture f8, ISO 400, Canon EF 100 mm macro lens, no flash.

Selected References:

Brock Jim P., Kaufman Kenn. Butterflies of North America. New York: Houghton Mifflin Company, 2003. P 158-159.

Struttmann Jane M. USGS Northern Prairie Wildlife Research Center. "Great Spangled Fritillary (Speyeria cybele)." Butterflies of North America / Butterflies of Iowa. <http://www.npwrc.usgs.gov/resource/distr/lepid/bflyusa/ia/74.htm > (15 Sep. 2004).