I've been taking photos as a hobby for several decades, first analogue, then of course almost exclusively digital for 15 years, i.e. I've seen and tried out a number of photo accessories over the years. With the filter I bought here, three things were decisive. 1. The quality, I've spent too much money unnecessarily on useless photo accessories 2. The price, I don't see an point in spending more money which you don't see in the photos afterwards anyway 3. The durability and expansion of a plug-in filter system Attached Image with the graduated gray filter All points speak for this product. The filters are quickly attached, make a stable impression and are supplied in a practical case. The plug-in filter system is more than useful for the hobby photographer. In any case, I wouldn't want to be without it in my photo bag. I can't understand the fact that the filters are difficult to insert, which is often criticized here, on the contrary I even find this important because otherwise the filter could quickly fall through. After more than half a year and several sessions, I can only say about the durability of the filters, so far nothing has been scratched or even broken. Conclusion: Anyone who takes pictures knows that this hobby can sometimes cost a lot of money, and often with this hobby it really is so; "If you buy cheap, you buy twice". However, I don't have the impression with this product that the more expensive competitors, who also offer plug-in filter systems, do it so much better that the surcharge would be worth it here. That's why I can only recommend this system

the quality of these filters seems to be on par with others (more expensive ones). The course is clean and evenly straight. The very well thought-out pockets, with their pull-out tab, offer fingerprint-free handling. Clear purchase recommendation on my part...!!!

A mild light reducer. Can be easily plugged in together with other medium-strength ND filters. Quality like other manufacturers offer. Good optical glass.

I informed them of these issues even though they were purchases made 18 months ago. They have since sent me a completely new holder with the missing part attached.

Excellent service. It's still worth checking when it arrives in case something else slipped through the cracks during production.

Gap between glass filter and filter holder. Not ideal if the purpose of an ND filter is to reduce the light entering the lens. Needs some work.

After looking at competitors and trying brand names one, found these at the fraction of the price, without a compromise with quality. The entire user experience from delivery is exceptional. You are very much buying a high-end product without the overpriced name brand. I bought these to help with my landscape photography, and they work exceptionally well with my Sony A7iii. The camera practically sees at night, to get a long exposure without this filter was incredibly difficult I would often have a very split picture with the moon/sun being very bright on the top end and the everything below the sky in complete darkness. After using the graduated filter, any additional adjustments happened at a snap. The material feels very sturdy, although I don't plan on testing the limits, I do believe that it is scratch-resistant. Looking forward to sunsets come spring to test this out further.

I got this on sale and for the price it is has been fantastic.

Well presented lookswell made pouch is nice touch oasis, t tried it yet for color casting but for the price I don't expect Lee quality give one a try

As the title suggests... Great metal filter holder. Excellent packaging, K&f, proves that it is a company that paints materials of excellent quality, no longer an alternative to the most famous filters, but first class! Recommended

The gray filter comes in a sturdy protective case and fits exactly into my Rollei rectangular filter holder. The optical properties do not reveal any errors. A satisfied customer thanks you.

Delivery was very quick. Unbeatable for the price... Everything is of high quality. I can also not confirm some criticism that the gradient filter is less foggy towards the middle. Been cleaned up for me. If the slot is a bit difficult, then loosen the 4 screws on the filter holder a little bit and everything runs like butter!!! No color cast on the filters! Great bags included... polarizing filter history, simply screw an existing one onto the lens and then the filter holder on it. What more could you ask for without having to spend €400-500 right away... Full marks from me.