am a passionate landscape photographer as a hobby and have now switched from the screw filters to this rectangular filter system from K&F. The screw filters were all fine, but you don't have the option of attaching a graduated filter to the ND filter in order to achieve even nicer effects. It is mounted on the lens using so-called adapter rings, which are included in the most common sizes for lenses. After attaching the adapter ring to the lens, the filter holder is attached. This is secured by a small lever (spring-loaded) and later released again with this. Now you can slide the filter plates into the filter holder. This lifts a bit severely but it should also hold and must not wobble. It is also important to observe that the filter used is close to the lens so that no more light can penetrate between the filter and the lens, which could possibly ruin the recordings. In terms of quality, the system makes a good impression considering the price. The only thing I noticed negatively is that the filter holder has some play after it is placed on the adapter ring and why there is no adapter ring for a 55mm filter diameter in the set, I also ask. 55mm is a common diameter for lenses. I can highly recommend the K&F system for amateur photographers. The professionals will probably use filter holder systems from other manufacturers, but they also cost a lot more.

I currently have a 12 stop ND filter that I find can be a little heavy handed at times and wanted a 6 stop ND.After seeing the promotion ads I thought I’d give this K&F Concept filter a try. The sale price was too good to pass up, my order arrived a few days faster than excepted which is always great. The filter was well packaged, love the pouch with pull tab which makes getting the filter out much easier, the filter quality looks to be great, equally or better then my current filters, hopefully I can test this 6 stop ND within the next few days!

My Tiffen 100mm filters are a thicker, and do not fit in the holder. K&F's fit well, but I can't inset my Tiffen Pro Mist into this device. Otherwise works okay.

Nothing to dislike

I have two K&F lightweight tripods. They are excellent and I use them regularly. I recently purchased a 100mm 10 stop ND filter for long exposure photography. Before I was able to take my first picture with it, the filter slid straight through my Lee 100mm filter holder onto the ground and smashed into a myriad of pieces.So I contacted K&F and they have replaced it for me. Very good service

This is high quality ND filter. And it's package like Giorgio Armani products ;-)

Merci reçue et satisfaite!

These are not cheap but comapred to Lee Filters a bargain. The filter holder is excellent, and is supplied with multiple adapter rings, which are £26 each from Lee. I can see no significant colour cast. So if you want to experiment with proper filters without breaking the bank these are a good buy. The filter cases are beautiful and the whole product presentation/packaging oozes quality.

Tried the filter a few times with landscape shots. Worked really well. Not affecting image quality or producing colour cast. Very happy with the product and purchase.

Excellent with little colour shift which isn't really relevant with post processing. Found it a fraction out in real world testing in stops and no great loss in sharpness but I'm just nick picking. Do your own tests to find the perfect settings. At the price it's good enough for most photographers.