The K&f Concept ND filters fit and finish for my DJI mini 4 pro are perfect. I highly recommend them.

I wanted ND filters for my DJI mini 3 Pro and this kit of 6 filters and propellers was exactly what I was looking for. Today was a very bright sunny autumn day and the light was too strong and harsh so I used these filters to get a good result and I'm happy they match my Mini 3. They come in a small plastic case to protect them and make carrying the kit easier. Very easy to put on, this was something I didn't think would be. I had to try them all on to see which would give the best result for that sunny day and there was one of the six that got me the image I wanted. If you are looking for ND filters for your mini I recommended them and you also get propellers.

Fits everything for my Mini 3 Pro. All the factory accessories that come with it fit inside this case. Even a pack of filters. Is this a "hard" case? Not really. It will survive in luggage but id rather this be in my backpack if I can help it. The top zipper compartment is almost perfect. I wish there was a bit more depth to it to keep a spare battery as it doesnt even take to my filter case too much if its on the drone side of the case. For me, thats what keeps this from 5 stars. Also, i wish Mini 3 pro wasnt printed on the case, its almost like an advertisement. Solid case overall.

I like to fly my drones early in the day when there aren't many people around, but the downside is that the sun is low in the sky and this gets worse in the winter months.
I've been thinking about trying ND filters for a while so I was delighted to have the opportunity to try this comprehensive set which includes ND4, ND8, ND16, ND32, ND64 and ND1000 and offers 2-10 stops of light reduction .
The filters weigh 1.1g, which is only 0.3g more than the detachable camera lens cover. This means that the total weight of the drone is still within the 250g limit for flight in A3.
Because the Mini 3 Pro camera has a fixed aperture, these filters provide an effective way to reduce shutter speed for more natural video capture.
The filters are supplied in a plastic housing with a click lock. The case is a bit larger than I would have liked, but it makes removing the filters easier and the empty space can be used to store the original frame or the removed filter.
The DJI Mini 3 Pro's camera is very small and I was afraid that if I took the cover off and replaced it with a filter I might damage it, but the whole process is pretty simple. However, I found it advisable to place the filters over my drone body so that if something falls it can be easily recovered.
Due to the current weather conditions and personal commitments, I have not yet been able to carry out a meaningful test. I will update this review when the opportunity arises.

These filters are perfect for my DJI Mini 3 Pro.
They screw directly over the camera after unscrewing the threaded cover, protecting your camera lens and making it easier to shoot without getting overexposed footage in daylight. I love that this pack comes with two adjustable filters covering from 1-5 stops and 5-9 stops so you always have the right amount of light depending on how bright it is. The build quality and packaging quality that go into these filters is second to none and they feel like they were built to last.

Great filters for Mini 3 Pro. My favorite thing is that they stick to the gimble, they don't just slide over them even though you get 6 different colors from ND4 to ND1000 and they come in a protective case. They feel very good. The set even includes a set of mini 3 propellers, very happy with these ND filters

My review refers to the following product, which was made available free of charge as part of a product test:

K&F Concept Mini 3 Pro ND Filter & Polarizing Filter, 3-piece ND8, ND16, CPL Filter Compatible with Mini 3 Pro（Accessories：8*Mini 3 per propeller）

This Filter set consists of the following scope of delivery:

- 3 filter attachments (ND8, ND16 and CPL filter) in a padded transport box
- 2 propeller sets for Mini 3 Pro consisting of a total of 8 propellers
- a small screwdriver for mounting the propeller

Quality and handling of the set:

The Filters are stored in a padded, transparent plastic box and are therefore well protected against damage or dirt during transport.
The filters themselves are very well made and sit perfectly on the Mini 3 Pro gimbal. They are easily assembled. First you carefully turn the original cap of the gimbal anti-clockwise and remove it. Then you can put on the desired filter and lock it in a clockwise direction. The filters are printed on their frames with fine white lettering "Nano-X CPL" "Nano-X ND8" or Nano-X ND16" and are therefore very easy to distinguish.

The glass filters have a metal frame, yet they are extremely light (only 0.7 grams!) so they do not negatively affect the weight of the drone.
They are dustproof and waterproof, so they reliably protect the gimbal camera just like the original cover.

The two neutral density filters (also called gray filters) included in the set reliably reduce the light intensity that hits the sensor chip of the drone camera gimbal. This allows beautiful effects to be achieved when taking photos and videos.

The ND8 filter lets through 1/8 of the incident light, the ND-16 filter only 1/16 of the incident light. Beautiful effects (blurring, etc.) can be achieved with the exposure time.

The polarizing filter from K&F, on the other hand, ensures that reflections are reliably reduced. For example, in buildings with windows or on water surfaces. The polarizing filter also makes the green appear richer. This is particularly noticeable when filming or photographing forests or meadows. Even shots of the sky draw it much better. Since the Mini 3 Pro can pan upwards with the gimbal, great pictures of the sky are possible with the attached K&F polarizing filter. The K&F CPL filter can also be adjusted by adjusting the scale on the filter.

The enclosed 2 sets of propellers should enable a very low-noise flight when used. Since they don't differ much from the original in terms of appearance or construction, I keep them as a replacement.

Conclusion:
All filters in this set from K&F do their job very well depending on the area of ​​application and are easy to install or change. Therefore a clear purchase recommendation.

I rate the product 5 stars overall.

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The K&F Concept Mini 3 Pro filter set arrives in a simple but visually appealing outer box.
One filter each is supplied in the following versions:
1x CPL
1x ND8
1x ND16
In addition, these are optimally stowed in a hard case with a transparent lid and molded foam padding.

On top of that, a propeller set consisting of 4 left and 4 right propellers, 8 screws and a perfectly fitting screwdriver is included.

The filters are a plastic version and advertised as such. They therefore hardly add any weight when they are exchanged for the protection of the drone lens. Thus, the 250g will NOT be exceeded!
They fit perfectly and without play on the Mini 3 Pro and the exchange is easy to do.

According to the manufacturer, the filters are made of multi-layer AGC glass. This is of the best quality and has optimal optical properties. The filters create exactly the desired effect and thus the video recordings are almost guaranteed to be perfect.

The propellers are also perfectly processed and are in no way inferior to the originals!

The filter set does it's job well, the propellers are just as top notch and I can't find anything negative about them. So I give it a full 5 stars and a clear buy recommendation.