K&F Concept 67mm Circular Polarizer Filter Ultra-Slim 18 Multi-Coated Optical Glass Circular Polarizing Filter for Camera Lenses with Cleaning Cloth (K Series)

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

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

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.

This filter is of great quality and works great as expected. Great glass, fits perfectly . I will be buying more for other lenses.

Good filter

The polarization worked just fine but my images were not clear. I was using in conjunction with a UV filter so I narrowed it down by testing the UV filter only and my photos were crisp and sharp. Then I tried the CPL and they were not clear at all so it was this filter. It may have just been a bad one because I’ve used K&F before and never had problems. I’m swapping it out for their Nano X filter and will write a review assures I receive and test.Not trying to discourage others from buying this filter. As I said, this one may have just been a bad one because most of the reviews are positive and I take those in consideration in writing this review.