More props from a reader:
Love this series so far and thought I’d throw in one of mine. This shot was taken along the central California coast in the Big Sur area after taking off from Monterey en route to Montgomery Field in San Diego in a Diamond DA-40. In contrast to all of the great shots so far on (mostly) clear days, this photo was captured under instrument flight rules. [CB note: That’s defined as “rules and regulations established by the FAA to govern flight under conditions in which flight by outside visual reference is not safe”—in contrast to visual flight rules.]
The right side of the picture shows an interesting pattern that tends to show up in cell phone pictures taken from propeller aircraft. The best explanation I have found is here.