The effect of a woman being eternally adored by a man because she is an ideal woman, rather than a perfect beauty. This term was coined in honor of Camilla Parker-Bowles, who has kept Prince Charles completely captivated for 40 years.
My friend Andrew just emailed me a pic of a woman he knew in college whom he claimed looked like a model back then and is just as hot as she was 30 years ago. All I saw was a middle-aged woman with a sensible haircut, dark glasses and wrinkles. Must be The Camilla Effect.