I acquired this 82mm Circular adjusting Polarizer Filter for use on both my Sigme 24-70 f/2.8 E mount as well as my Canon 24-70 f/2.8L II lenses. It's simply a perfect polarizer for these highly versatile zooms.

The lens is extremely well-made and circular action is smooth as silk when attached to the lens. High-level multi-coating assures detail in photos and videos without artifacts or hazing, and maintains outstanding focus accuracy.

Polarizing filters have multiple uses, including deepening color enhancements of sky and landscapes, especially in bright conditions. Additionally, the circular adjustments can be used to shoot through windows clearly without reflection, as well as taking pictures or video through water. For example, this filter can be used to take perfect pictures of Koi (Japanese Colorful Carp) in a pond without having light bounce-back from the water surface. There are other uses as well.

To operate, it only takes pointing a camera at the subject and turning the outer level of the filter until the desired effect is seen through the viewfinder...or on a display screen. Easy peasy.

I own a number of K&F filters of different types including UV, ND and Diffusers. I have come to trust the company's products. This one is a superb value at the price as compared to much more expensive Polarizer filters like those from B+W and Hoya, while providing virtually equivalent performance. Awesome!

It's an unequivocal high FIVE STARS from me, along with my honest and very hearty recommendation. Up your photography and vlogging! Get this!

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