Whilst my main camera is an iPhone 15 Pro Max which I use with a cage that has dedicated mounting for filters, I occasionally like to take my iPhone SE2022 for an airing so ordered this to allow some control over light when shooting.
Unfortunately it seems the iPhone is far too small to allow the mount to clamp on without a relatively thick case, something I prefer not to use as I like the tiny form factor of the phone.

Fortunately ny wife, who is also a photographer, was more than happy to claim this for herself and she had no such issues attaching it to her POCO.

The filter performs as one would expect a K&F product to, no visible vignetting or X in use across the various stops.

This K&F Concept clip-on 67mm CPL magnetic lens polarizer filter kit is compatible with my iPhone 12 Pro. It’s very easy to use, simply clip the base on to your iPhone, twist the screw on the base to tighten, and then attach the magnetic lens filter to the attached base. With the magnetic adapter ring, the lens filter can be quickly removed, then redeployed, if necessary, without necessitating removal of the entire clip-on base piece. The clip-on base and magnetic adapter ring are also compatible with various other K&F Concept magnetic lens filters, so that’s a plus if you’re already using other K&F Concept lens filters. There’s also a top cold shoe for an additional light, or a microphone.

This K&F Concept kit includes a clip-on base, a 67mm CPL magnetic polarizer lens, a carrying case, and a cleaning wipe. The overall quality of this kit is excellent, certainly above average. This K&F Concept filter kit fits my iPhone 12 Pro perfectly, the locking knob feels secure, and it didn’t cause any damage to my phone. This lens filter does extend slightly beyond the edges of my iPhone, at the top, and on one side, but the design helps filter out light.

I’m using this K&F Concept lens polarizer filter kit primarily for outdoor beach photography. I desperately needed something to help reduce the glare and reflections that I had been capturing in my beach photographs. I’m very satisfied with this K&F Concept lens polarizer filter kit, it has worked very well for my purpose. At around $35, this K&F Concept lens polarizer filter kit is a solid value, an option definitely worth considering. Highly recommended, especially for beach photography!

I used this with my iPhone 15 Pro Max, and it's such a fun little gadget for exploring the world around you. The magnification is impressive for its size!
I took a zoomed-out shot of a chair and then zoomed in close, and you can really see all the fine details.
It seems like it would be a great tool for checking out jewelry too. I let my son use it, and he had a blast walking around and finding things to examine up close. The built-in light is a nice touch, and you can adjust the intensity, color, and warmth of the light, which is super handy.
Overall, I’d definitely recommend it! The manual is also clear and shows you exactly how to line it up with your phone.

I use my iPhone half for personal use and half for my job. I have to take photos for work every now and then (which has nothing to do with artistic photos) and over time I have acquired a few accessories to make it easier to take usable photos.

This tool is really great, you get numerous additional options by simply "clamping on" the "lens". Especially when the light from natural light is too strong, you can use the filter to effectively reduce it as desired and without having to compromise on the colors.

I also find it incredibly easy to use, you don't have to screw anything onto the phone, just quickly clamp it in place and you're done.

One small disadvantage (at least with the iPhone 15 Pro Max) is that you have to remove the phone case so that the lens fits neatly and doesn't stick out.

But as soon as I use the phone exclusively for photos, I don't mind removing the protective cover.

I think the filter is great with its easy application and excellent functionality and therefore give it a well-deserved 5 stars!

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.

Darkening filter lens with clip to attach it to the iPhone (works on all models).
The lens can be unscrewed, it has a 52mm thread and can also be inserted on some Canons.
Useful in case of direct exposure to the sun, otherwise the iPhone will be able to adjust the brightness independently without any problem. I really like the effect that is created when you overcome the darkness of the lens, creating these blue-purple edges.
If you also own a reflex it becomes a valid purchase also in economic terms.

Capturing life's fleeting moments has never been easier, thanks to K&F Concept's ingenious phone lens filter kit. From the moment I slid that magnetic adapter onto my iPhone, I knew this was a game-changer in the realm of mobile photography.
The variable ND filter is a true gem, allowing me to effortlessly control light exposure and achieve those silky-smooth long exposures that bring motion to life. Whether it's freezing the crashing waves or blurring the bustling city streets, this filter has become my trusty companion. The cold shoe mount and locking knob ensure a secure fit, preventing any unwanted lens shifts mid-shot. While the magnetic attachment can be a tad finicky at times, the convenience it offers far outweighs any minor hiccups. With K&F Concept's filter kit, my iPhone has undergone a transformation, elevating it from a mere snapshot-taker to a powerful creative tool that captures the world through a truly unique lens.

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.