I was taking vacation photos at the lighthouse in Corolla, NC when my wife yelled at me about a butterfly (she loves flower/butterfly/garden pics). No time to set up, I just turned and shot two before it flew away. How lucky did I get? Settings (Canon D30, Sigma 28-70EX):
Shutter Speed=1/200
Av=2.8
ISO=200
Focal Length=70.0 mm

http://www.bscandm.com/img_0026w.jpg

I was taking vacation photos at the lighthouse in Corolla, NC when my wife yelled at me about a butterfly (she loves flower/butterfly/garden pics). No time to set up, I just turned and shot two before it flew away. How lucky did I get? Settings (Canon D30, Sigma 28-70EX):
Shutter Speed=1/200
Av=2.8
ISO=200
Focal Length=70.0 mm

http://www.bscandm.com/img_0026w.jpg

Good start. For next time, you ;ll want to crank up the ISO and aperture - you'll get a sharper, more detailed picture.