K&F CONCEPT 55mm Circular Polarizer Filter Ultra-Slim 18 Multi-Coated Optical Glass Circular Polarizing Filter for Camera Lenses with Cleaning Cloth (K Series)

It's great. Really improves color (just be patient and rotate the filter carefully), gives much better (optical) result than image processors. You'd lose 1-1.5 F but worth it. Could even be very useful in darker environment where sporadic light sources are present. Not exactly cheap but good investment in thousand of photos. Shipping was fast. Thanks.

I love K&F ive been using this brand for a while now and i must say the products are great and the value for the money and quality of glass is unmatched in my opinion. Works well, good fit!

Great CPL works exactly as I’ve needed it to. No issues with it and image quality is still great! No issues with color and protects my lens as well. I’d buy again in a different size.

For the price of it was really good fits my lens nicely and the quality looks really clean and clear changes the color a slight but probably normal for a filter

Ultimate tool for the real estate interior shots

Works well

Great protection, quality, value is perfect, and no loss of image quality!

A nice lens protector. I enjoy having a couple of extra just incase an accident happens