For any photo where reflected light from a surface can play a role, polarizing filtering can help to significantly improve the sharpness of a photo. This CPL from K&F offers good value for money; a brand you can trust. The images I took with the filter at a local pond definitely showed the filter doing its job. And photos taken in front of glass buildings could also be creatively influenced by the presence of the filter on the lens.

Circular polarizer is essential for my outdoor photos. It makes skies look great and calms the glare on water. It gives the wow factor to photos. This filter is quality glass and works well. Recommended.

An optical system is only as good as its weakest link. Putting a filter in front of a lens will only ever cause a small amount of degradation in image quality, but this shouldn't be noticeable provided the filter is made from high quality optical glass. I was very sceptical about the image quality this polarising filter could offer at its low price (£18.99 at time of order) considering a similar item from Canon costs around £200. Having tested it thoroughly, I have to say that even from my perspective as a retired professional photographer with over 40 years of experience, I am incredibly impressed! It looked great from the start as it came in a lovely silver foil box with a plastic storage case. The manufacturers have wisely included a high quality lens cap and cleaning cloth. There was also a wrist strap included in the pack which was a bit random but welcome nonetheless. When I examined the filter in detail, I was honestly amazed at its build quality. The metal outer ring is very slim, yet it is made in two parts, allowing the polarizing filter to rotate smoothly and freely once attached to the lens. It fits perfectly with my Canon 16-35mm f4 L-series lens. My first impressions were so unexpectedly positive that I felt I had to confirm them with an objective test. You can see the results in the attached photos. These were not created to demonstrate the polarizing effect (which I had already verified works as expected), but simply to find out what effect the filter might have on image quality. The first thing you notice about the full frame is that due to the narrow filter rings, even at the widest focal length of 16mm, there is no visibility in the corners of the image or darkness in the corners of the image. There are also two images taken in the same way as the wide angle view. I cropped them to show the level of detail in the center of the frame. One shows the result with the filter attached and the other without. I really can't see any noticeable difference between the two and will therefore feel comfortable using this filter without worrying about it significantly affecting image quality. Overall (and I must admit rather to my surprise) I can't say anything bad about this filter and am therefore very happy to give it the well-deserved full five star rating

The product comes in a nice branded box with the filter housed in an oversized plastic case. A lens cap, cleaning cloth and lanyard are also provided. It works very well and seems well made. I've paid almost the price of this in the past just for a spare lens cap, so this set seems like good value for money as expected.

I own a dozen or so filters from various manufacturers for my cameras. We all know that when you're looking for a filter, you will see offerings that run the gamut on pricing, and sometimes it's hard to tell the difference between an inexpensive product and one that costs more. The moment I received this filter, I knew it was special. Let's start with the packaging. Instead of being shipped in just a dinky box or plastic bag, this has a sturdy cardboard box with a metallic sheen. The outside is also completely printed with QR codes for info, specifications, etc. On the inside, you get a sturdy, transparent storage case that snaps close. Inside is the filter with a LENS CAP attached, as well as an orange lanyard. As a bonus, you will get a sealed cleaning cloth. I don't think I've ever purchased a filter that came with a cap retention lanyard and a lens cap before. I am using this for my Fuji X100V, and of course, it fits perfectly. I can use the included lens cap with any filter I decide to use. The only con I've found is that once you get this on and rotate clockwise a few times to get the right CPL effect, the threads are really tight. The threads are also so short that it's hard to get a grip on just that area to get them off. I had difficulty removing the filter from my camera and had to resort to a filter wrench. However, this is not unique to just this filter. All filters could have this problem with removal.

I've been using K&F gear for a while now and their kit hasn't let me down yet and this filter is no different. The polarizing filter screws onto the standard threads of my 67mm lens and even comes with its own compatible lens cap, a box when not in use and a cleaning cloth. The filter doesn't deform and is also really hydrophobic so using it in light rain or spray won't be a problem.

K&F Concept Polarizing 67mm Lens Cap. I like these lens caps because they are made of very high quality steel with polarizing glass to not only protect your glass (lenses) but also allow you to change the polarization by rotating to get the best possible photos for the lighting conditions. The lens also has several special coating layers to intensify the colors while reducing glare. I highly recommend the K&F Concept lens caps as I use the K&F on all my RF and older EF lenses.

This is a polarizing filter from K&F Concept. It comes neatly packaged in a sturdy case with a lens cap, strap and cleaning cloth. I got this 52mm cover for my 50-200mm Canon M50 Mark II and it fits perfectly. It has a nice clear image and I'm very happy with it. If you're looking for a polarizing lens, I highly recommend this one.

I am not a professional photographer but I dabble and every once in a while, I am able to capture a great picture! I don't know as much about glass as a professional, but I do know that a polarizing lens is a very good option to have on a sunny day. I live in Hawai'i so I have opportunities to take vivid photos of blue skies and oceans. With this polarizer, I notice my blues are more vivid and the oceans have a richer color.
I also take a lot of photos of forests and birds. It's a hit and miss with this type of photography because of the lower light that is typically found in a forest.
This is a really good filter kit- it comes with a lens cap and a cleaning cloth. I am very happy with the package and the clarity of the glass.

This is a good quality circular polarizer. I find that K&F concept filters are generally high quality and this one is no exception.

The build quality is great and the circular polarizer helps shine and reflection to be controlled by rotating the filter. Probably the only small nitpick I have is, I wish there was some physical indicator to show the position of the polarizer, as I tend to accidentally rotate the polarizer while filming.