I've been taking photos as a hobby for several decades, first analog, 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 can'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 photos 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

Scope of delivery:

- filter holder for 100mm x 100mm filter
- adapter ring 52mm
- adapter ring 58mm
- adapter ring 62mm
- adapter ring 67mm
- adapter ring 72mm
- adapter ring 77mm
- adapter ring 82mm
- padded cardboard box for filter holder

The set makes a very valuable impression overall.
The adapter rings are made of black anodized aluminum - they are well made, not sharp-edged and the thread can be easily screwed onto lenses.
Apart from the filter inserts, which are made of plastic, the filter holder is also made of black anodized aluminum. Here, too, the processing is excellent. Maybe the quality of the plastic inserts could be a tick better, but that's already whining at the highest level. The inserts fit all 100mm x 100mm filters with a thickness of 1mm - 2mm.
packaging was impeccable; Adapters are individually wrapped; Filter holder is in a nice padded cardboard box.
Full points and recommendation for a perfect rectangular filter system at a significantly lower price than some other manufacturers.

Wanted to buy good and cheap neutral density filters for my camera. I came across these filters from K&F Concept and then bought them, the quality is great. No limitations in image quality. Can be unscrewed easily. A really useful set that leaves nothing to be desired. I can only recommend.

I almost always only need the ND64. I worked with ND filters for the first time. With the right app that calculates the exposure time, these filters can be used very easily. Would I buy again.

Have with this kit (holder + 8, 64, 1000) already made quite fancy pictures, top products for really good prices

The filters come in a small package. Inside there is a little padding around it. This cardboard box is also very suitable for taking the filters with you.

The filters themselves are of great quality and work perfectly.

Conclusion: For an acceptable price, you get super quality filters that work perfectly and are ready to use.

I have now used the filters a few times for landscape photography and am very satisfied with them. They are easy to screw on and off, nothing gets stuck. I am also very satisfied with the picture quality. For me as an amateur hobby photographer I think it's great with a very good price-performance ratio.
There may be even better and higher quality and I don't know what kind of ND filters, but I'm completely satisfied and would buy them again at any time! Especially since they are light compared to other systems and do not take up a lot of space when travelling, which is an important criterion for me.

After the first impression, the K&F filters are absolutely ok. Stable metal frame with a somewhat tight thread. The filters actually have a blue tint, but that doesn't really bother me, especially since this can be ironed out via the white balance. I thought it was great that the filter container was included. Very stable, with it the other existing filters can also be stored in the bag to save space and still be safe

is definitely recommended. fast delivery, product good, packaging good, everything great. Need the filter mainly for filming, because when it's bright outside you can't film with an open aperture. Do their job quite well, but are not quite normal and warm up the picture significantly. But it's nothing you can't get out of it in post-processing.

Filters come well and nicely packaged, you can take them with you.

I would order this filter set again immediately. Great workmanship, 100% perfect fit and unbeatable for the price. Service and ordering process everything was great, the goods were in my hands just 3 days after ordering! I use the filters as a hobby and have no professional demands on them. Nonetheless, I think this is an excellent product (especially given the low price).