If you've heard about it...great. If you haven't then you need to read lol
I didn't know about this and had probably inadvertently done it not knowing. In class last week someone brought up that he was constantly blowing out skies. The f/16 rule was brought up and problem solved.
When shooting into a blue sky, set your camera to f/16, 1/125, ISO100. No matter what you do, you will get blue skies. If you are shooting a subject, you might need a little fill light but for the most part you don't.
This is not shooting directly into the sun. Test it out...check it out and see if it works for you
All SOOC (straight out of camera)