These filters fit my Leica Q2 like a glove. They screw on very easily and then hold extremely securely until they are just as easily removed again. The filter is quite thin, so there is no vignetting even with the Q2's wide-angle lens. The filter strengths were selected for practical purposes and are suitable for everyday use. They range from a slight vignetting of 8, through 64, to an almost opaque 1000 strength, which is great for freezing movement while maintaining a large aperture. The glass of all filters is absolutely perfectly crafted. There are no inclusions or uneven coating. The coated surface is also supposed to repel dirt and moisture. I can't really confirm that. In any case, the glass doesn't behave much differently than an uncoated filter. This isn't a negative, as dirt and water roll off equally well in both versions. In addition to the filters, there is a practical little bag and four cleaning cloths for cleaning the lens and filters. Last but not least, the price is also attractive, so I can give the overall package full marks. Five stars and an unconditional recommendation!

Since I'm not a photography professional, I can only offer a layman's assessment here. Subject to this caveat, however, I can confirm that the filters screw onto the lenses without any problems and leave nothing to be desired in terms of workmanship. The included case and cleaning cloths also contribute to the very positive overall impression. My initial photography experiments have shown me that using these filters leads to very interesting results. I look forward to continuing my tests!

1. Packaging and Workmanship The filters come well packaged and padded. In addition to the three filters (ND8, ND64, and ND1000), several cleaning cloths, a microfiber cloth, and a holster are included. The workmanship of the filters is good. The aluminum mount has a good grip, and the filters screw on and off the lens easily. The thread is also smooth. 2. Functionality Without examining this scientifically or under laboratory conditions, I took some test shots and compared the white balance. The results showed that ND8 and ND64 have a slight reddish tint, while ND1000 has a slight green tint. However, this is all within the range of nuances, and the coloration can be easily controlled with a white balance correction. Nothing compares to "cheap" filters. Sharpness and contrast also suffer slightly with increasing filter strength, but this is only slightly noticeable at high zoom. 3. Summary All in all, a very good filter set, especially for the price. + good filter selection + practical and sturdy bag + sturdy construction + minimal coloration and contrast reduction

Many of my Tamron lenses for Sony E-mounts have a 67mm filter size, and I've used larger filters from my DSLR days using adapters. So testing the K&F Concept ND filter set came at just the right time. The set comes in a compact cardboard box. It contains three individually wrapped ND filters, individually wrapped dust cloths, and a well-made and practical carrying case. The filters' build quality makes a very good impression, and I'm impressed by the quality K&F offers for such a low price. My question was whether the filters' optical performance would match this positive impression. I haven't tested the ND filter graduations, but my gut feeling is that the stated ND values are achieved. I could detect minimal color shifts in the optical quality of my test images. However, these are completely negligible for the low price. In my opinion, only significantly more expensive, higher-quality filters offer better results. I doubt that this is even necessary as an amateur or hobby photographer. If you use K&F filters for videography, you can completely ignore these minimal color casts. Overall, the K&F Concept ND filter set is definitely worth recommending. At just under €40, the filters are very affordable yet still of good quality. Therefore, the filter set clearly deserves 5 stars and an unconditional recommendation.

I'll be honest, I'm new to filters. I've been shooting with my camera for years, but I've never really delved into the subject of filters. Now it was finally time to change that. This set came at just the right time, as it contains three common filters, inviting me to experiment. There's also a practical little bag with three compartments for easy and safe storage of the filters, as well as a couple of cleaning cloths to keep everything clean. It's a complete package. Since I have two 67mm lenses, I bought the corresponding set. All three filters can be screwed onto and off the lenses without any problems. The size is correct, and the thread seems to be well-made. As a private individual, I obviously can't measure whether these are actually the stated filters of ND8, 64, and 1000. What I can say, however, is that you can clearly notice the individual stops and achieve completely different results with each one. That's what ultimately matters. The image quality also seems very good to me. I was a bit concerned because you always read a lot of stories online about cheap filters negatively affecting sharpness. Fortunately, I haven't found that to be the case here. The images are razor-sharp and look very good.

My review refers to the "K&F Concept ND Filter Set 67mm ND8+ND64+ND1000 Filter Neutral Density Filter Set." It comes in a small pouch, making the set ideal for travel. The filters fit my 67mm lenses very well. The image quality is beyond reproach.