This double-sided magnetic lens filter mount adapter for the iPhone 17 Pro Max is a really great product. The key thing to note is that it allows the user to attach any 58 mm filter. This means filters for normal, mirrorless, or DSLR lenses that use standard filters. The filter included with this kit is a circular polarizer, which works well to cover all three lenses on the iPhone. It helps reduce reflections and makes the sky appear a deeper blue. The filter is made of aluminum, and while the turning is tight, it remains easy enough to rotate.Regarding the magnetic case, it fits the phone well, but it’s best used without a case covering the camera area. If there is a case in the camera area, this magnetic lens filter adapter may not fit properly because of its design. Overall, I think this works really well and is a great option, especially if you want to use standard filters on your iPhone. However, be aware of the type of case you have, as it could interfere with this adapter. The adapter is straightforward to put on because it is MagSafe compatible. And overall, I say this is a great value!

This lens filter mount allows you to add a polarising filter, or is compatible with other 58mm lenses.It fits the iPhone Pro Max 17 perfectly. The magnetic housing attached to the rear of your camera, covering all three lenses with a large circular polarising filter. Also included is a soft-shell case to keep the lens and mount adapter safe when not in use.In practice, it works well. The mount attachment uses the magnetic rear of the phone and sticks well. Image quality with the lens is perceivably better - in particular on sunnier days, or where you might find suffer glare (such as lakes and roads). The intensity of the glare-reducing effect can be adjusted by twisting the lens.Attaching the filter is easy - it screws on, and the other sensors remain unobstructed whilst the mount is on.On the down side, it's a little annoying there wasn't a lens cap included - it's a big glass lens that would be easy to scratch or collect dust. It also didn't quite fit my phone with the case on (I have a camera plateau protector so the mount doesn't quite lie flush. I did test with my partner's iPhone Pro Max 17 - her integrated camera plateau protector didn't seem to interfere. And without the case, it's also a perfect fit.So yes, with the polarising lens on, you will notice a much better image, with reduced glare. However remember to get a separate lens cap to protect the lens, and note that some cases will stop the mount sitting flush.

The filter clip comes compactly in a cardboard box with a fixable rubber strap, a circular polarizing filter, a storage pouch and a sealed cleaning cloth. I was immediately impressed by the idea, finally a polarizing filter on the mobile phone! Image editing is fine and good, but it doesn't replace a polarizing filter. For us, this is more or less the always-on filter on the SLR, even though there are, of course, situations where you don't need it. But it usually doesn't hurt even if it's still on. The filter clip is not compatible with any of my mobile phone cases. So I can't sign “Support Magsafe phone cases” for mine. Now I've been thinking about how I would like to use the whole thing for a relatively long time. While I have no problem using Magsafe for (usually lightweight) accessories on my mobile phone, I really didn't want to hang the not-so-lightweight cell phone on the accessories - and you don't have to do anything else here. A pouch is included in which the clip itself has more than enough space. Unfortunately, the mobile phone does not fit in the case. Just putting the clip in the bag when you're on the go and packing your mobile phone somewhere in your jacket or trouser pocket without a case or security strap is not a useful solution for me. And then put everything back together every time you need it... In the end, I sacrificed one of my cases and cut off the camera protection frame. This allows me to use the filter clip with the case and attach the included strap to the cover instead of to the clip. The filter clip has a bit more game than directly on the mobile phone, but it lasts great. That worked great so far. Since the strap is made of rubber and therefore somewhat flexible, the whole thing slipped off my wrist and landed on the ground at the end of the day when I took off my gloves in front of the parking machine. The clip fell off, but the phone (thanks to the case?) Nothing else happened and the clip and filter were also not damaged. Another case with camera control button and slightly higher screen protector has been ordered for version 2.0 after the proof of concept has worked.

The filter clip impresses with its good workmanship and high quality. Thanks to MagSafe, it can be easily and securely attached to the back of the iPhone without complicated installation. The option to use filters with a diameter of 58 mm is particularly practical, which significantly expands creative photography with a smartphone. The clip also works easily in combination with a case. It is also positive that the outlines of the clip are not captured in the image and therefore no vignette is created. Overall, a very sophisticated filter clip that noticeably enhances smartphone photography.

I bought this K&F Concept magnetic lens filter mount for my iPhone 17 Pro because I’ve been experimenting more with mobile photography and wanted a cleaner way to use my 58mm filters. From the moment I snapped it on, it felt like one of those accessories that just makes sense. The magnetic alignment is quick and satisfying, and it locks into place with a reassuring click that makes it feel secure.What impressed me most is how solid the magnetic hold is. Once it’s on, it doesn’t shift or wiggle, even when I’m moving around shooting video or switching angles. The double-sided magnet design really works, and it keeps the filter mount perfectly centered over the lens without blocking the camera or flash. I was worried it might feel bulky, but it actually keeps the phone surprisingly sleek and balanced.Using threaded 58mm filters on a phone feels almost surreal in the best way. I’ve been able to use ND and CPL filters that I normally use on my mirrorless camera, and the image quality improvement is noticeable, especially in bright outdoor light. It gives iPhone footage a more cinematic look and much better control over exposure and reflections.The build quality is also excellent. The frame feels sturdy, the finish looks premium, and nothing about it feels flimsy or cheap. The included lanyard is a nice touch too, especially when you’re out shooting and want a bit of extra security.For anyone serious about mobile photography or video, this K&F Concept mount turns the iPhone 17 Pro into a far more capable creative tool. It’s simple to use, feels professional, and opens the door to real camera-style shooting without the hassle of bulky cages or clamps.

An essential accessory if you take pictures with the iPhone and not just take pictures. The set is delivered in a hard case for safe storage. The Magsafe mount is made of solid metal and fits snugly. The most important filter, a CPL also known as a polarizing filter, is included. This allows you to reduce reflections and light reflections and give the subject back its strong, natural color. Anyone who wears sunglasses with polarizing filters will know the effect. Of course, all 58mm filters can also be used, such as gradient filters, close-up filters, ND filters, etc. ATTENTION: IR bypass filters unfortunately do not work, as iPhone cameras intentionally block infrared light in front of the image sensor through an integrated IR filter to ensure natural color display. Can you test it yourself with an IR remote control. My Shieldon case also fits perfectly. A great extension for iPhone photography at a very fair price!

This professional CPL filter from photography significantly improves and optimizes recordings with the iPhone. Areas where non-metallic reflections occur, such as water or glass panes, are largely anti-reflective. Landscape photos with blue skies and white clouds are optimized in color and the image structure is improved.

Box contents and workmanship:
The cardboard box contains a sturdy bag made of EVA material. In this bag, the individual accessories are well secured by a mesh pocket and elastic bands. The bag makes a sturdy impression and can also be used very well later to transport other filters and accessories.
The bag contains:
- the magnetic filter holder - 1 x orange wrist strap
- 1 x cleaning cloth
- 1 x magnetic metal ring to stick on for cases or accessories that are not suitable for MagSafe

- 1 x 58 mm CPL filter The magnetic holder is manufactured to a very high quality.


It is made of aluminum and has a rubberized surface on both sides so that the iPhone on one side and various accessories on the other side cannot scratch and hold securely.
The cutouts and dimensions are made to fit very well and are neatly finished.
There is no sharp grade or dirty edges.
The iPhone's camera platform is also protected from scratches and bumps with small foam rubber inserts on the magnetic holder.
The edges are covered with anti-slip silicone material. There is a hole at the top corner near the flash to attach the wrist strap.
The MagSafe magnets securely hold the iPhone and accessories on the holder.

The CPL 58 mm filter can be screwed onto the bracket with a thread. This filter is made of AGC optical glass and has a double-sided multi-layer coating. This is a high-quality polarization filter that is also used in professional photography. By turning the filter, reflections on water or glass can be avoided and the photos can be enhanced and made to look better.

Conclusion:
Now you can also take great photos on the iPhone, which are made even better with the help of photography filters. There are many other filters for different applications and scenes, which can be attached to this 58 mm magnetic holder from K&F CONCEPT either individually or on top of each other.
Since the magnetic holder has Magsafe on both sides, I can also attach my iPhone and filter holder to a MagSafe compatible stand. This allows me to leave my system camera with all accessories at home when traveling or during leisure time and only take with me my iPhone with a mini stand and the magnetic holder with various filters.

I got this set for my iPhone 17 Pro Max, and it delivers a noticeable upgrade for both photo and video work. The magnetic mounting system connects firmly and lines up accurately with the cameras, making it easy to attach and swap filters without slowing down a shoot. With an ND range from ND2 to ND32, it gives solid control over exposure in bright daylight and helps keep shutter speeds where they should be. One thing to know up front: it is not case friendly. To get a proper seal and alignment, I have to remove my phone case every time I use it. That’s not a deal-breaker, but it does add a step and makes the phone feel more vulnerable while shooting. If you rely on a rugged case or hate taking your case off, this is worth considering before buying. Performance-wise, the results are impressive. Highlights are more controlled, skies hold their colour, and I’m seeing smoother motion blur in video instead of harsh, overexposed frames. The variable ring turns smoothly with just enough resistance, so it stays locked at the level I dial in. There’s minimal color cast, and vignetting is very slight when everything is positioned correctly.Overall, this ND filter kit feels well-built and genuinely boosts creative control on the iPhone. It’s portable, easy to use, and capable of producing more cinematic footage and balanced photos — as long as you’re okay removing your case each time. For mobile creators who prioritise image control over convenience, it’s a strong accessory worth considering.

The magnetic system is practical and well-adjusted. The CPL filter effectively reduces reflections in photos and videos. The set remains compact for mobile use. ✅:

As Vine Voice, I tested the K&F CONCEPT double-sided magnetic filter clip in combination with the included 58 mm CPL filter on the iPhone 17 Pro. The adapter is clearly aimed at users who want to get more out of the iPhone camera photographically — and it does just that. Thanks to the strong magnets, the filter clip sits very firmly and securely on the back of the iPhone. Nothing slips during normal use, and installation and removal is quick and easy. First images taken with the CPL filter show a visible improvement when lighting conditions are right: reflections on non-metallic surfaces are reduced, colors appear richer and the sky is significantly more structured. The effect is particularly visible when photographing landscapes or architecture. I find the compatibility with standard 58 mm screw filters particularly practical. As a result, you are not limited to one filter, but can flexibly expand the setup — in my case, the next step is an ND filter to also take long exposures with the iPhone. The included storage bag also makes a high-quality impression and is suitable for transport. A small downside: When combined with an iPhone protective case, the filter clip does not fit perfectly. For the best fit, the case usually has to be removed, which you should plan for everyday use. The bottom line is a well-thought-out, high-quality accessory for ambitious iPhone photographers who want to use their mobile camera consciously. Anyone who is willing to forego the case for a short time will get a powerful tool for visibly better pictures.