I chose the surveillance camera for outdoor use.

The total package comes with everything you need. Installation material is included. Everything is also included for wall mounting. Once everything is done, the app is installed.

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

The app is easy to understand. The camera records small video sequences when movements are made. It is also recorded more often, although you do not see any recognizable movement. Fortunately, this can be deleted again. The intercom works quite well so far.

The transmission during the day is crystal clear. But if the recording is not so good, the picture is shown only in black and white. At night, you can choose between color and black and white.

A very good camera that can use solar energy, very clear, and can be seen clearly even at night.

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.

I have worked with K&F Concept filters in the past and generally had good experiences with them. They're good, mid-range quality filters at (usually) a budget price. I haven't worked with any black diffusion filters prior to this one so I have no basis against which to compare, but so far it seems to work as designed and seems to be made very well.

In a nutshell, this type of filter softens light a bit, causing some gentle halos around light sources, without impacting image sharpness or detail. Where I have seen the most noticeable impact is in images where there otherwise would be a lot of shadows and contrast; instead of stark contrast and strong shadows, the filter has the effect of brightening up the shadows somewhat and creating smoother color gradients. Sure, this can be done in software after the fact, but it is a lot easier to do this at the time the image is taken and it certainly is a lot less work.

The filter is very easy to install. This is my first magnetic filter and it is as easy to attach to my camera as I could have hoped. The threaded ring attaches to the lens in the same manner as a step ring or another filter, and the filter itself just snaps securely into place due to the magnetics. Removing the filter is just as simple, especially if you choose to leave the magnetic ring in place on the lens.

The assembly seems to be well made. I have had filters in the past that have been poorly constructed and rattle in the frames when shaken, or have been mildly blemished, or just felt cheap. This filter has none of those issues and appears to be well made.

This is a nice black diffusion filter. It's easy to install and use, and it just works. I will be using it more in the coming weeks.

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 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.