The circular polarizer is one of the most important pieces of equipment you can own for outdoor photography. As important as polarized sunglasses are for fishing, a polarizer is not something to leave at home.
Not only does it cut glare on water and other highly reflective surfaces, it cuts glare on leaves and the sky, making blues and greens more intense. This filter screws on the end of a lens and then freely rotates, allowing you to choose the power of the polarization.
The two photos below show the effects of a polarizing filter on water glare.
Some tips for using polarizers
- Facing at a 90 degree angle to the sun lends the maximum amount of polarization
- On some subjects, such as flowing water, you don’t always want to cut all the glare
- More expensive filters have higher quality glass and coatings that lead to better quality
- If you plan on using a Grad ND filter, you likely won’t need a polarizer
Recommended filters (Match the filter size to your lens thread size)