Looks like a great filter for my photos and film but the downside is they sent the wrong filter size with most of my lenses having a filter size of 77mm and they sent a size of 82mm, come on kandf type the size for our lens

well done. works very well. Allows legendary Zeiss lenses to be used on most Nikon film and digital cameras. focuses perfectly.

Shipping was very quick. The &F Concept Nano-K series Black-Mist 1/4 filter 72mm Black Promist 1/4 filter made of optical glass is very well made and can be screwed onto the thread of the lens without play. So far I have gotten to know a few products from K&F. The quality (and also the price) have increased significantly. The filters come close to comparable manufacturers who charge far more. I have the standard filter portfolio at home so far. This is my first filter, which should also achieve an effect. My anticipation and expectations were correspondingly high. The filter puts a slightly dark look with a lot of nostalgia on the picture. I really liked it. Also that the filter does not change the quality of the image. The filter harmonises perfectly when I shoot in jpeg with my film simulations. I'm a passionate Fuji photographer and I'm on the go with my X-T5 or X100V. The filters and the corresponding film simulations harmonize perfectly!!! I can highly recommend the 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.

The best filter I've ever tried. Unlike the other filters I've tried, the image from a DSLR actually looks like film.

I simply copied the complete text from my YouTube video for you. Who prefers to see the video "Dji Osmo Action 3 I without ND filter in automatic mode and in PRO mode?" Enter on YouTube. Why do you need filters? It's a valid question, of course, who hasn't asked themselves that? I think everyone has stumbled across this topic and this question... The answer to this is very simple and surprising in view of this video - No, you don't need filters on a camera, it works without it...***but...It would be more an advantage as a disadvantage to have and use some. Anyone who works a lot on the water and beach, like me, or of course, like most of you, vacations there, quickly learns to appreciate filters. First, they are a very good protection against dust or sand from the beach. Of course, a filter also protects the lens, the lens in the camera. So much for the obvious, but the main job of a filter is to let less light through onto the sensor, it's like putting sunglasses on the camera. This has the advantage that longer exposure times can be achieved. It helps the camera to adjust and react faster in automatic mode when controlling the exposure time or white balance. Or if you prefer to work in Pro mode, you will quickly find that the exposure, the shutter, generally works better. In general, filters make the water smoother, and there are also fewer reflections. Or if you take great landscape shots, the sky immediately looks a little bluer. Filters also enhance the colors generally, making them more vibrant. DJI has, in my opinion, excellent colors and that in connection with a filter automatically makes the recordings **//LVL UP. This saves you having to color the film material because it comes out of the camera almost finished. Of course, the full professionals among you have other requirements and such, but I'm talking here for the normal user, like you and me... There are different ND filters. It starts **in my set at ND 4 and goes up to ND32. The ND4 filter lets only ¼ of the light through to the sensor and the ND32 filter 1/32. I use my filters like this... in the morning ND4, towards noon ND8, noon to afternoon ND16 and afternoon to late afternoon when the sun is very high ND32, and then in the evening just before the golden hour I go down again with the filter strengths. Over time, you will figure out when and where which filter is best used, is not witchcraft, even if many want you to believe that. Especially in summer or in winter when there is snow, I think it should at least be almost mandatory to have ND filters to have. If you like to film in Pro mode and work a lot with it, it is almost a must to work with filters alone because otherwise you cannot work with exposures in a meaningful way.... Especially in summer or in winter when there is snow, I think it should at least be almost mandatory to have ND filters with you. If you like to film in Pro mode and work a lot with it, it is almost a must to work with filters alone because otherwise you cannot work with exposures in a meaningful way.... Especially in summer or in winter when there is snow, I think it should at least be almost mandatory to have ND filters with you. If you like to film in Pro mode and work a lot with it, it is almost a must to work with filters alone because otherwise you cannot work with exposures in a meaningful way....

ND filters cause the image to "darken" in order to be able to film at medium exposure rates or larger apertures.
The Osmo Action is of course not a film camera, so I wouldn't say here that NDs are a must - but if you want to film primarily in the SLOG profiles, want to experiment with long exposure (even in the light), try time-lapse recordings or in the snow sun is on the way, he should think about it.

You definitely can't go wrong with the K&F Concept Set. The filters are of incredibly high quality and come in a custom-made case. The case can be closed securely and is flat enough to be stowed in a backpack.
The filters can be changed quickly, which is important because of course you need a different one in the twilight than in the midday sun.

Incidentally, a highlight is the anti-reflective filter, which filters out reflections in the snow or on the water surface, for example. You really get a new perspective with him, which is fun.

I've been shooting with an EOS 600D since 2012. I already own several Canon lenses. So have direct comparison options. Since I was looking for a new lens to film for my YouTube channel, I came across the Chinese product and was very skeptical. As it turned out, my skepticism was unfounded. I am amazed at how well the small, inexpensive lens harmonises with my Canon and as far as the film and image quality is concerned, I can only be amazed. The autofocus works audibly and relatively quickly. 2 of my Canon lenses can't do it faster either. The accuracy of the autofocus is also good. Only the sensitivity of the focus is almost a little "unstable". Small vibrations can sometimes throw the focus off course. But I don't mind. I can't say anything about durability yet. Will show. My conclusion...at the price you hardly do anything wrong. Recommended. Die-hard professionals will certainly still find points of criticism, but for me as an ambitious hobby clipper it is a real delight.