I chose the outdoor security camera.

The complete package comes with everything you need. Installation material is included. Everything is included for wall mounting. Once you've done everything, it's time to install the app.

Once the app is installed, you have to register. You also have to enter your e-mail address in order to receive the confirmation code.

The app is easy to understand. When there is movement, the camera records small video sequences. It is also often recorded, although you can't see any recognizable movement. Luckily it can be deleted. The intercom has worked quite well so far.

Transmission during the day is crystal clear. However, if the recording is not that good, the picture is only shown in black and white. At night you can choose between color and black and white.

Box contents:

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

The whole thing makes a very valuable impression overall.
The adapter rings are black anodized aluminum - they are well made, not sharp and the thread can be easily screwed onto the lenses.
In addition to the plastic filter cartridges, the filter holder is also made of black anodized aluminum. Here too, the treatment is excellent. Maybe the quality of the plastic inserts could be better, but this is already complaining at the highest level. The inserts fit all 100mm x 100mm filters with a thickness of 1mm to 2mm.
the packaging was impeccable; Adapters are individually packaged; The portafilter comes 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.

The “K&F Concept Nano-K Series Black-Mist 1/4 Filter 72mm” comes in a plastic box that you first have to figure out how to open. Even when you've mastered it, it's still cumbersome. There are also 3 microfiber cleaning cloths, individually wrapped in sleeves. I chose a diameter of 72 mm in order to be able to use as many of my lenses as possible with it using adapters. The filter has a corrugation several centimeters long on two opposite sides, so that it is particularly easy to grip. As the English name "mist filter" roughly translates to "fog filter", the filter creates an effect or mood like fog, especially with lights. In addition, this filter makes the skin appear a little softer. I'll start with the second point, with the skin: The effect is minimal and should be seen more as a positive side effect. Significant wrinkles/skin imperfections remain visible and only slightly lose their sharpness. It's different with lights. That is also the main purpose. Here the effect is very clear as the pictures show. The filter gives lights a glow or aura. The image with the sharp edges is without the filter and the image with the glow and smooth transitions is with the filter. Conclusion: an inexpensive Black Mist filter for beautiful lighting effects. Only the box is suboptimal. The filter gives lights a glow or aura. The image with the sharp edges is without the filter and the image with the glow and smooth transitions is with the filter. Conclusion: an inexpensive Black Mist filter for beautiful lighting effects. Only the box is suboptimal. The filter gives lights a glow or aura. The image with the sharp edges is without the filter and the image with the glow and smooth transitions is with the filter. Conclusion: an inexpensive Black Mist filter for beautiful lighting effects. Only the box is suboptimal.

K&F Concept is really stepping up their filter game and this one is awesome. This review is for the K&F concept 82 mm black diffusion 1/4 effect with variable ND2-ND32 2-in-1 filter. For this filter, K&F stepped up its packaging, utilizing a magnetic lid box and a magnetic leather pouch. The filter itself is stored in a clear plastic bag, which unfortunately uses an adhesive folding closure (just be careful when removing/inserting the lens to not let the band of adhesive touch the filter). Still, the overall package is much nicer than the plastic snap box with foam cutout, but I can't say if it's more practical or "better" as I feel it provides less protection than the hard plastic snap box. Anyways, on to the filter itself.

The filter looks and feels great. It has a solid metal construction with a premium feel to it. The inner stationary ring has two large areas of knurling and the outer movable ring is fully knurled. One section of the outer ring has an orange metal tab sticking out for easy turning. This particular filter has hard stops built into it for the minimum and the maximum. I am unable to appreciate much or any X effect on my 18-35 mm lens (not that the X effect is typically a significant issue at these lower stop levels from 1-5 anyways). I really like the built-in hard stops though because it lets me know when I'm at the minimum and the maximum and I can make more efficient adjustments instead of just blindly rotating well past each end and going all the way around. The variable ND portion works well, but how's the black diffusion? I'll be honest, it's my first time using a black diffusion filter, but the effects were definitely noticeable between having it vs not having it. It provides that soft cinematic feel and tones down the highlights and contrast. I can't believe I've never used one until now.

The K&F Concept 82 mm black diffusion 1/4 effect with variable ND2-ND32 2-in-1 filter provides premium functionality at a budget price point, especially when compared to the bigger brands. At that point, you're paying extra hundreds of dollars for minor gains in optical performance. If you need the absolute best because it's your profession, then just move on and pay the big dollars. But if you're looking to test the waters or need a strong working filter without breaking the bank, then K&F has the glass you need.

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. Perhaps 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.

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.

The K&F Black-Mist Filter is my first filter that creates an effect. I haven't had any experience with this and to be honest I'm very pleasantly surprised. Of course, this can look completely different for someone who already has experience in this area. The filter is delivered in the folding box familiar from K&F. In addition to a plastic box in which the filter is packed again, there are 3 welded-in microfibre cloths to make the filter and the lens dust-free before assembly. What I personally really like is the coating of the metal ring. Filters are often painted very smoothly and are difficult to tighten. A matt and very non-slip coating was chosen here. The grip is further supported by 2 zones with corrugations and you can tighten the filter very nicely and without any problems. It would be whining at a high level if you now wanted to add a better fitting storage box for the filter. There is nothing wrong with the fit and the smooth running of the thread. Therefore I award 5 out of 5 stars.

The ring comes in a black plastic box which gives the feeling of a neat product. The graft is a bit too hard but once fitted it has no play and works well. It has no contacts, so the focus and aperture must be adjusted manually, but this has already been indicated in the characteristics. It allows me to use some lenses with Minolta - Sony mount on my Canon M5.