This bag is well made and big enough to fit mavic 3 drone or and DSLR and lens plus chargers and accessories. Excellent value for money when compared to similar bag from competitors.

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.

Suitable for 1 Mavic Mini 1. There were no problems with the gimbal. Perfect !

Super filter set that I use on my DJI Mini 2 drone. Very high quality. Super light too. A great tool kit for the cameraman in your family. Great price too!

Perfect to complement my Mavic Mini !!

The K&F Concept ND filter set is rated in ND 8, 16, 32 and 64 for DJI Mavic 3 Classic.

The filters come in a small plastic storage case. Inside are the 4 filters, embedded in a foam rubber mold. Thanks to the foam rubber, they remain reliably in place and are well protected from scratches.

The filters themselves consist of a metal frame and tempered optical glass.
They are included in 4 different strength classes. For most purposes, the filters should be sufficient to be able to increase the shutter speed of the drone as desired, thus creating a cinematic motion blur in the image. Or simply to be able to correctly expose the image.

The filters have a very good workmanship. They fit the drone's lens with millimeter precision. The closure of the filter holder snaps gently into place. The filters can also be easily turned down again.
I really like that the filters are made of metal. In addition, one weighs just 8g, which does not change the flight characteristics of the drone.

The compensation is excellent, the filter has no color cast.

Conclusion
In my opinion, the K&F Concept ND filter set is a very good product. The filters are cleanly processed + the set is thoughtfully put together. Long exposures with ND256 or higher filters will not be done from the air anyway, so I think the ND 64 is the all-purpose weapon for very bright environments or very long shutter speeds for motion blur.
At the time of my review, the price of the filter set was around EUR 50, which in my opinion represents an excellent price/performance ratio.
So I'm giving it 5 stars and I hope my review was helpful.

The Mavic 3/Mavic 3 Cine Drone variable ND filter is well made, easy to install and use, and nicely packaged. Compared to filters bought on other platforms, K&F does a great job!

The only filters that don't block my Mini 2's nacelle.
I've tried all other brands (Freexx, Sunnxx and others) and as soon as I put a filter on (drone off) -> Gimbal is stuck!
The only solution was to put the drone on, but painful (nacelle movements) and very risky for the electronics.
With these K&F Impec filters! Drone off I put the filter on, turn it on and Hallelujah it's finally working!

Thankfully not this issue on my Mini 3 Pro which attaches the filters to the sensor but that's certainly how I would go with the K&F.