I've been using the K&F CONCEPT 58mm filter clip for some time now and I'm really pleasantly surprised. The best thing about it: You're not limited to a specific smartphone model. I change my cell phone occasionally and almost always use a case — and this clip is ideal for exactly that, because it can be adjusted quickly and is still stable.

The spring-loaded push button makes it pleasant to use: put on the clip, press, sit. No fumbling and significantly safer than many “tightening clip” solutions, which either slip or apply too thick. The silicone pad all around also ensures that the clip on the smartphone or case does not slip and does not cause scratches.

The 58mm thread connection is super practical because it allows you to use common filters. The set already includes a CPL filter — I use it most often: reflections on glass/water are visibly reduced and colors look richer, especially when taking pictures at the lake or taking pictures. The effect depends, of course, on the angle to the light, but overall you can clearly see the difference.

The set is also easy to take with you: lightweight, compact, with a bag and safety strap — this gives me additional security, especially when traveling.

Conclusion: For anyone who wants to take mobile phone photography more seriously without binding themselves to a single device (and especially taking pictures with a case), this is a clear recommendation. Stable hold, quick installation and a useful CPL filter are included.

I mainly use the filter for outdoor photos and for small subjects (models, shiny surfaces). The difference is clearly visible: reflections are reduced, colors are richer and contrasts are better. Especially with glass, paint or water, the effect is immediately noticeable.

The clip sits securely on the smartphone, even with a case, and is quick to put on and take off. The thread is neatly finished, the filter can be easily rotated to fine-tune the effect. I also find the low weight positive — it doesn't interfere at all when taking pictures.

This is a practical accessory for anyone who wants to take pictures or film more consciously with their mobile phone. Not professional equipment, but a noticeable upgrade for mobile recordings.

The filter clip fits well on my mobile phone and is easy to attach and remove thanks to the push button. The CPL filter noticeably improves the image quality of outdoor photos and reduces reflections. The workmanship looks sturdy, but the clip is a bit tight for some cell phones, so you have to be careful when putting it on. Overall, a handy accessory for mobile photography.

This clip-on filter kit has been useful for cutting glare when I shoot outside with my phone. The filter screws on securely and sits flat against the camera. It is lightweight, and my phone still feels normal to hold once it is on. Since it is a CPL filter, I can rotate it to control reflections on windows and other shiny surfaces. That makes outdoor shots look clearer, and colours come through deeper. Skies look a bit darker, and glare is noticeably reduced without distorting photos. Setting it up only takes a few seconds, it is very easy to use on the spot. It also comes with a case that keeps everything together, it makes it easier to carry in a bag without worrying about scratching the filter. Overall, this filter kit has been amazing. It helps me get less glare on photos, especially when shooting outside.

This lens clips on securely on my 16 pro and makes a noticeable difference with glare and reflections. It’s especially helpful for outdoor photos and water shots to help reduce the glare. Doesn’t feel bulky on the phone. A solid add-on for mobile photography.

Other than the force of the clamp pressing down on my phone screen being a bit of a concern I was pretty impressed with the quality of the filter kit. It comes with a pretty decent carry case and the filter itself is made from glass and like a proper camera filter the polarising effect can be adjusted by rotating the filter. The device clipped onto my iPhone 16 Pro without any issues. It does work as a polarising filter though the phone did look a little odd with it attached. Overall, a workable filter mount but not a seamless solution.