I use my camera mainly for video, so it's usually locked down on a tripod, but these ND filters really do provide a lot of options for creativity while shooting. I love the magnetic mount so that I can quickly switch between them to find the exact level of step-down I'm looking for. I have purchased several K&F Concept products over the years and each of them never disappoints. For this set, I do wish that I could keep the ring on and still attach my lens cap, but for my specific usage, this isn't a deal-breaker as I typically only place the cap on once I'm done with my shoot.

"We have what would be several filters (actually more than 2) in one. And I say several because there are ND (neutral density) filters with different degrees of darkness. Here we can regulate it. And the same filter with a function of polarization.
Below I explain what each thing is for (for people who are amateurs or not initiated in photography or video).

The filter itself is well built. It's quality. It works well (I mean smoothly in all its movements and turns, without strange sensations or suspicious noises, it twists well). It weighs its own. It is well thought out.
Good presentation. Robust case to be stored carefully.

Comes with a microfiber cloth (always appreciated).

AS A NEUTRAL DENSITY FILTER: so that we understand each other, it is like putting “sunglasses” on the lens. When we want greater darkness than the lens (and the camera) can offer us. For example, let's imagine that we want to photograph a waterfall at slow speed to obtain a “cottony look” of the water. If there is a lot of light, with the camera and lens settings it will be impossible to shoot at low speed. For that, for example we use neutral density filters (also called ND). We can use them for other creative purposes to suit the consumer. But that is essentially its function.
About this neutral density filter: very curious. We adjust it to our liking (see video) and we don't need to carry different filters (of different degrees of darkness). Very good.

AS A CIRCULAR POLARIZING FILTER: circular to differentiate it from the linear polarizing filter (but it would be excessive to explain it). It essentially serves to saturate the colors by choosing where. As we rotate it (that's why it is circular) we can observe how it saturates in different areas. It is very practical to assemble it, look at the sky and rotate to observe how the color darkens and intensifies in the area we choose depending on the rotation. Very useful in photography to saturate colors (especially skies, seas, etc.) and give them color intensity.
Other use: to control (suppress) reflections. In my video you can see that depending on how I rotate it, I add or especially remove reflections. This is seen in water, for example, in glass or on reflective surfaces. I strongly encourage you to try it because it is surprising how reflections are suppressed.
About this polarizing filter: it behaves acceptably well (not optimally, perhaps it could be stronger and more homogeneous in the transitions, but it does its job). It costs a little to turn (but nothing serious).

Let's keep in mind that with the filter on we will not be able to attach the lens hood to the lens. This can be seen in the small aberrations (spots near the sun) in the images I have taken. It is not the direct fault of the filter (it is caused, in part, by not being able to put the parasol on...although looking directly at the sun, the spots will always appear...and there are even those who love those light effects).

Let's go to the summary?

I am getting older so this kf concept Basic monopod allows me to cover some of my B-roll DSLR video needs without lugging a full tripod all the time. You have to do your part vis-a-vis remaining still, but this was well worth the price.

I was reading reviews for other ND filters and found this one for the price to work great for what i will be doing. The build quality is really nice, it has some weight to it so it feels strong, the glass is really clean and it works perfect, I got this for my 35mm 1.8 and it allows me to take pictures and shoot video in full daylight at a wide aperture of 1.8 with an even balance of blue in the sky to the greens in the grass. I was really impressed with the quality of this filter. I will be getting another one for my 50mm 1.8. I'm using it for mid day long exposures of waterfalls and cloud landscapes. Also this helps give a cinematic look for shooting video which looks really nice! I didn't see any noticeable loss of detail in images or video which is what i was worried about. I did NOT notice any kind of X or shadowing from this filter. It is probably from using a wide angle lens. I highly recommend this ND filter!

My Mini3Pro works perfectly with these filters, the gimbal has no problems with them, the box for the filters is sturdy and there is no harm in having spare propellers. They can be changed easily. I don't notice any discoloration from the ND filters in the recording.

That says it all, this set is clearly recommended for the Mini3 Pro. But now the question: For whom are these filters recommended and what for?

Put simply, for anyone who doesn't want a video look but wants a film look on their recordings. What's the difference? In the so-called motion blur.

If you film with the drone on a sunny winter day with snow at noon, the camera adjusts itself to an extremely short exposure time due to the brightness. Each picture is only exposed for one thousandth of a second. If you then pause the video and look at the frames, every single frame is a razor-sharp photo, no matter how fast you're flying. It is this complete sharpness of the individual images that creates the video look that is often perceived as cheap.

Film look has motion blur, ie fast-moving elements in the recording, eg in the foreground when it is very close, are somewhat blurred in the individual images. This makes the rapid movement of objects in the running film smoother for the eye. In the single image, however, you can see the blurring of the fast-moving objects. This type of recording also corresponds more closely to how our eyes see. The picture becomes more natural.

To achieve this effect, you need ND filters. In order to achieve a film look, the rule of thumb is that you should double the number of frames per second and thus get the desired exposure time. So if you're shooting a video at 30 fps, the target exposure time is 1/60th of a second per frame. At 60 fps corresponding to 1/120th etc. This is a guide, you can experiment and get interesting results.

On our clear winter afternoon over snow, far too much light falls into the camera in a 60th of a second and the image is completely overblown. If you now put a high ND filter, for example 64 or even 1000 on the camera, the filter darkens the lens. This allows you to set the camera to a 60th exposure time, less light falls through the filter and the picture looks good... but with the motion blur caused by the 60th second exposure time. When which ND filter is right has to do with experience. In general, a higher number indicates a greater darkening of the lens.

So ND filters are needed if you want to make more natural looking videos that contain fast motion. A good example is when you fly over a rapeseed field with the beautiful yellow flowers at a height of only a few centimeters.

You have to decide for yourself whether you prefer a film look or a video look. Both can have their own appeal. But if you want a film look... I can recommend this filter set.

I already knew K&F Concept from my passion as a DSLR photographer, where I rely on several filters from the manufacturer. I am all the more pleased that I have the opportunity to test suitable ND filters for my recently purchased Mini 3.

In addition, there are several spare propellers (which I hope never need) are included.

A total of six filters:
- ND4
- ND8
- ND16
- ND32
- ND64
- ND1000

are waiting to be used. All of them are produced to a high standard and are a perfect fit for the gimbal. Over time you will also get a rough idea of ​​what ND value to use based on the prevailing lighting conditions.

This is a great filter set that is very easy to install/uninstall and change filters. Simply twist the original lens cap counterclockwise and it will come off. These filters snap into place and are safe to fly.

The video in my review shows the DJI Mavic 3 Classic doing a hyperlapse at sunset. The video was stabilized and color corrected (which was really easy with the ND8 filter).

I recommend this set. You can't go wrong unless you're using the wrong filter.

Great quality ND filter compared to price. You should get one of this K&F Concept ND filters if you are a video maker.