K&F Concept 77mm 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.

Ultimate tool for the real estate interior shots

Seems to be just fine as a polarized filter, but it doesn't quite feel as smooth as some of the other circular polarizing filters I've used. I am not super confident that it won't surprise me by breaking some day.

Works well

Very nice add-on for Olympus 7-14mm Pro lens. Because this wide/zoom lens has a large domed front glass element, mounting a CPL is... challenging.There ARE a couple of great but expensive solutions on the market, but if your usage or budget do not justify the cost, this K&F 95mm works great if you permanently mount it on a budget 100x100mm square filter holder with an 86mm adapter ring, with a little 10.6 inch strip of soft velcro to take up the small space left between the adapter ring and the 85mm diameter lens hood. Got that? Ha.Anyway, this polarizer is well made works great for glare reduction indoors and outside in my R/E photography.

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