I have used ND grad filters for years on my SLR and DSLR cameras. I love scenery photography as opposed to portrait so always looking to sort out the difference in the light between the horizon etc. I live near the sea les that 300m away and walk along the cliffs regularly and don't take my DSLR with me when walking the dogs but always have my iPhone so any unexpected scenes are normally captured using the iPhone. This ND grad filter will come in useful. It fits over the lenses of my iPhone and helps sort out the difference in the light. Once clipped on it is easy to rotate the bezel to the setting you want using your finger. You have to ensure that you do not go past each of the stops or you will get leakage. SO my advise is to check before shooting that you are at the required stop. The other great thing about this filter is that it unscrews from the clip holder and can be screwed onto my 52mm lenses..Bonus... All in all this is a great little filter that I will carry around with me when out walking the dogs. We have a dog walking bag which has Poo Bags and drinking water etc so it sits in the side pocket of the bag in its case. so it is always there if we get a lovely sunset or something really nice to photograph on the sea or beach.. Get little gadget well worth the money highly recommended... As soon as we get anything really nice I will update this with the images...

Very good filter system with the most common filters you need. I use this on an iPhone 15 Pro Max using a filter holder for taking pictures and filming. Thanks to the excellent magnetic adhesion, the filters sit firmly on the holder, but are still easy to change in seconds. The image quality is not negatively affected by the filters and is fantastic overall. The price-performance ratio, especially in the set, is great.

This ND filter was developed specifically for the iPhone. This should be taken into account, otherwise the verdict will probably not be so favorable. The special thing about it is that this ND filter with its filter ring completely encloses the camera module of the newer iPhones. The actual filter then lies directly on the lenses and sits really well.

Unfortunately, this doesn't work with a cell phone case that has a camera protector. Then the camera module becomes too big and the filter no longer fits over it.

The whole thing is held in place with a fairly tight clamp, which of course then covers part of the display. But in my opinion that's not particularly important.

The filter can be adjusted from filter strength ND2 to ND400 by simply turning it. The whole thing is done with a quarter turn, so all levels are pretty close together, so you should turn slowly. There is a 10-level division on the ring, but it can still be adjusted continuously. The filter does not always have the same effect on all three lenses. With the ultra-wide angle of the iPhone 14pro, for example, you can get the filter ring in the picture with some settings. In some settings you notice a slightly stronger vignetting. You have to try it out a bit, but you can get the hang of it quickly.

Who needs something like that? Certainly no one who doesn't know straight away what an ND filter does. The product is aimed more at photographers who want to get even more out of the iPhone and, especially in bright light, still want to use long shutter speeds. To do this, you would have to delve a little deeper into the subject. There are numerous, very good YouTube videos on the subject...

I think it's really great that the filter holder or clamp with a 52mm thread can also accommodate other filters. A polarizing filter or graduated filter would be exciting here for different effects.

In any case, I am very happy with this ND filter, even if I probably won't use it that often. I tend to take the photos or videos that can be produced with it with a system camera. But if you're travelling light or want to experiment with iPhone photography, this is the right choice. The price is unbeatable for this great quality.

This is the best ND solution I have found. I am using an iPhone 11. The filter attaches easily and the clip is firm. The filter is so easy to adjust and I cannot fault its operation.

I like to take photos with my dSLR camera. Unfortunately, sometimes I don't have it with me and I take photos with my smartphone. To be able to be a little more creative, I tried this ND filter on my iPhone 15 Pro max. The filter holder holds various filters with a size of 52mm. When the iPhone is used without a case, the holder completely encloses the cosmic lenses. Although the holder is of course visible from the front, Face ID unlocking is not affected, which I find very positive. The setting options on the ND filter itself are seamless within the specified range. This allows you to take creative photos. Of course, other filters with a size of 52mm can also be used. It would also make sense for me to use CPL and star filters as well as close-up lenses. The fact that I can now use other filters alone improves the iPhone camera a lot and I'm sure I'll be able to take nice photos in between without having to lug the "big" camera around with me all the time. By the way, I already know the company K&F Concept from various filters for my dSLR lenses and have always been satisfied and convinced by them. In any case, for anyone who wants to get more out of their iPhone shots and the unlimited possibilities for using various other filters make the product a must! for photographers who want to create something more than standard images.

The smartphone lens filter from the K&F Concept brand impresses with its excellent workmanship and quality. The variable ND filter, which is easily and securely clipped onto the iPhone lens using a clip, is particularly impressive. This innovative approach makes it possible to use the advantages of a professional ND filter on the iPhone as well.

The filter is extremely easy and intuitive to use. The clip holds the filter firmly in place without slipping, which enables uncomplicated and quick installation. This is particularly practical when you are on the move and need to react quickly to changing lighting conditions.

Another plus point is the photo quality, which is not affected by using the filter. The images remain clear and sharp and the effects of the variable ND filter are well presented without color distortions or other unwanted artifacts. This makes the filter ideal for anyone who wants to take high-quality photos with their smartphone.

Overall, the filter offers an excellent way to improve the flexibility and quality of smartphone photography. It is easy to use, well made and ensures that the photo quality always remains at a high level. A clear recommendation for all smartphone photographers who want to expand their creative possibilities.

I have a cage for my iPhone 15 Pro Max and 14 Pro so am able to fit screw on filters but my lowly but much loved SE has no such luxury.
This meets that need with the added bonus that I also have a whole bunch of lenses that take a 52mm thread filter too

Love these 3 magnetic filters, and the included magnetic ring with "threads" so I can use magnetic filters on my more conventional cameras. I use them on my iPhone 13 ProMax "Small Rig" (which is also amazing).The ONLY reason I'm giving these fantastic filters 4 stars instead of 5 is that the set that they sent me has a UV filter "with threads" and it just doesn't work with the magnetic mount. Other than that, however, these are perfect, and it is simply brilliant that you can change filters in under 2 seconds.Not such a big deal though, I have other 52mm lenses I can use the threaded UV on. But still... wish the order would have had the threadless UV.