Take a look at an article just published that I wrote as I took a journey through Yosemite. In it I explain how to use Manfrotto's Circular Polarizing filters to improve your images.
Tutorial
Manfrotto School Of Excellence Article Just Published /
An article I wrote for the Manfrotto School of Excellence has just been published about how to best shoot out of helicopters. Take a look if you have a head for heights...