For auto rigshots I needed a quality filter at a good price, this would be worth buying at a much higher price! It comes beautifully packaged with a high quality holder for the filter, all made from non-animal products! But none of this matters if it doesn't work, but it does! High quality glass with no tolerable impact on my A7R IV's picture quality. If you need a great ND, this is it!

have an ND 400 that I use for waterfalls etc but I don't always want to block that much light so I looked for something a bit faster maybe an ND16. I've had variable filters in the past but have never been happy with the dreaded Xs the screen when you rotate it or an uneven color cast across the screen. I saw the K&F ad that said you didn't have any of these issues so thought I'd give it a try and they are great, very even light reduction across the frame and no Xs.I have the 77mm filter he is really well made, there are stops on rotation so it's easy to see where the limits are, the frame itself is slightly larger than the 77mm so no chance of vignetting in the corners, the small downside to this is I can doesn't seem to attach the filter with my hood, but that's no big deal. We recommend.

I used it on my 17-55 Canon 2.8 lens for video. It is wonderful! Nice feeling to turn it, perfect case for transport included. Does j not have an "x" when used at 8 stops! Does not affect the picture quality. I have a similar, only more expensive, other brand that doesn't work as well as this one. I am a professional cameraman and I trust this brand!

For a while I had been hesitating between several brands to choose a filter holder for ND and GND filters. I took advantage of a flash sale to buy this kit. I am not disappointed.
The set seems sturdy and easy to store.
The case, quite pretty, has 5 compartments, 3 of which, for square ND filters, are raised via a ribbon. On the back of the case, there is a belt loop and a belt loop. I would have liked a slightly more spacious compartment to house the adapter rings with the CPL filter when it is removed.
The assembly (or disassembly) of the elements is well explained in instructions in several languages, including French.

Main positive points:
No dominant color, nor loss of sharpness on the first tests carried out.
The plastic frame with its tabs to handle ND filters.
The system for installing the PLC filter on the filter holder.
the knurled button for mounting the adapter ring and for rotating blocking the filter holder.
The very accessible wheel to control the polarizing filter.
The sturdy holding of the square filter on the filter holder.
The robustness of the metal filter holder.

If you have to find slightly negative points: Keeping
the square filter a little too sturdy in the filter holder.
The click too loud to lock the CPL filter in the filter holder.
No pouch to independently protect the CPL filter in the case.
No protective cover for the CPL when the set is installed on the lens.

Very easy-to-use system
Top product
I've never regretted the purchase.
A great concept in all.

Too bad that accessories to reuse filters that we already have are so difficult to order.

The filters are great and I like the frames that make it possible to remove the filter from the bag or put it on. You also have to clean less. One small thing bothers me a bit:
With the associated K&F filter holder, the CPL (polarizing filter) is very loose. It literally rattles around when you move the camera on the tripod. But everything works as it should.

I recently became aware of the K&F filter system. What I particularly like is the frame that allows me to touch the filter without touching the glass surface. And the price is also low compared to other manufacturers.

These filters are of very good quality, but above all they are very practical and very easy to use, thanks in part to the frames and tabs they have. They are highly recommended.

This is a good kit if you need a filter system that includes ND and polarizer. Image quality is not degraded with the included filters. The filter holder is sturdy and easy to install.