One of my most used filters is the polarizer. Simply put, this filter transforms flat, dull scenes into beautiful photographs. Polarizers add contrast and saturation into landscapes. And I love how a polarizer cuts through water glare, revealing what is beneath. If I am headed to western Colorado to photograph fall colors, I will bring a selection of polarizers. Brilliant stands of yellow aspen framed against a deep blue sky is one of my favorite landscapes, and a polarizer helps …