In gallery: Photos of the month (2007)
Related photos: Atmospheric optics
This photo shows strong iridescence around the sun in jetstream-like clouds over the French Alps. The roof in the foreground is the cabin where I stayed during a one-week ski trip to Saint Jean d'Arves, France.
Nikon FE, 50/1.4 Nikon Nikkor set at f/16, Fujichrome Provia 100F.