These are great filters and holder. Works with a large variety of lenses, I use this frequently, it never leaves my camera bag.

Works great on my Nikon Z6 16-30

Update: I received my replacement filter holder this morning. Good as new. Great job! Thanks for rectifying the problem.

I purchased this item on 5/1/24. In that time my filter holder has fallen apart. I am disappointed for the fact this product was recommended by a colleague and the quality appears to be so poor. I have not encountered similar issues with my other products. KF products are supposed to be on a difficult level of quality than this.

This needs to be replaced asap!

I purchased the K&F X-PRO Square system. I've used other filter "systems" and most work as expected. These filters fit for all of my Nikon lens filter of diameter up to 77mm (or actually 95mm on the mount). The material and construction is exceptionally well manufactured and well thought out in its design. The included manual is clear and well written for we English speaking/written folks at least. The adapting rings offer "just enough" purchase for screw mount to the lens, so be patience and carefully on the mounting them... could use a few more threads, I suppose. Mounting the 95mm polarizing (CP) is a snap - insuring you position the proper direction. Of course, you have two different ways to rotate the CP - using the handy knurled thumb wheel or to lighten the locking the full frame and/or from the full frame assemble.

Now, since I did not give you ALL of this products 5-stars for a silly reason. The package and the "Storage Case" is over killing! Beautifully packaged, thoughtfully planned for the full system with space for growth. I/most have their own storage and transport camera cases(s) and most do not fill this beautiful storage case! I would rather have had another filter or a more spartan case for individual filter cases for my camera bag... as a trade for the case! For me, I found another small & padded case, for my new K&F bracket + the CP perfectly for my camera bag. AND I had hoped that the K&F offered properly protected for individual square lens w/frame separately purchased - but not with success.

SO - it's not Perfect for my needs - though almost! Although this is my "first K&F product, I strongly recommend based on my first purchase!

Greg Wilder

Part of a brilliant photography system

Exceed my expectations, its a really well made filter holder and set of filters and very easy to handle.
10/10

I can't say that I've mastered using the filters, but I feel like the build quality is top-notch and I'm looking forward to getting better with my photography.

I have been very impressed with K&F Concept products over the years and have a number of the products in my Kit from Tripods through to Filter Systems such as these. Had been using a different system for a couple of years but when I upgraded to a full frame camera (Nikon D850) That smaller filter system Vignetted the 24mm lens. This was my first choice for the shortlist and eventual winner. It is giving me excellent results. The Build Quality is first rate and I am very happy with my purchase and will happily recommend the K&F Concept Brand to anybody looking for any camera accessory.

Excellent value for money. Well though out, made and engineered, comes in a nice box, all very well presented. Complete with adaptor rings to fit most lenses. No colour cast that I can see. Im very pleased with the filter kit and have produced good images. Would recommend K&F Concept Pro Square filter set to anyone not prepared to pay silly money for other brands.

Ued to protect 100 * 150 Graduated filter byK&F