As an amateur photographer, I'm thrilled: I can finally use a variable ND filter on the iPhone, as I already know it from my SLR cameras. Although the shutter speed on the iPhone cannot be set manually as precisely as with a DSLR, the ND filter visibly extends the exposure — making the photos look more natural and often even more detailed than without a filter. I find it particularly brilliant that the filter has a classic 67mm thread. This means that it not only fits the iPhone via the magnetic holder, but also to my DSLR lenses. This allows me to use existing filters for both systems — a real link between smartphone and DSLR photography. The MagSafe mount securely holds the filter to my case. Despite the edge of the case, there are no problems with shading in the image. This allows me to install and remove the filter quickly without despairing of fumbling. As I already know it from the camera sector from K&F Concept: Although a Chinese manufacturer, they deliver very good workmanship that is in no way inferior to established brands — and at a fair price. Positive: • Variable ND2—32 filter for flexible exposure control • 67mm thread — can also be used with DSLR lenses • Sturdy MagSafe mount, no wobbling or slipping • Clean workmanship, good image quality • Impressive price/performance ratio Negative: • iPhone exposure control limited, effect not always usable to the maximum (but is due to Apple and not to the filter!) Conclusion: A top tool for photographers who want to combine smartphone and DSLR photography. It's fun, visibly enhances images and brings flexibility to the setup.

Super convenient The filter is immediately mounted with the custom-fit magnetic holder. Works flawlessly. The 67mm screw filter also fits other lenses.

The magnetic ND filter from K&F Concept is a great extension for anyone who wants to get more out of their photo and video recordings with the iPhone. The magnetic holder holds reliably, the filter can be adjusted continuously and ensures a beautifully balanced lighting in daylight. A real advantage, especially when recording videos. A dot deduction because the adapter doesn't always fit perfectly with cases with a slightly thicker edge — you sometimes have to shoot “naked”. Nevertheless: high-quality workmanship and very well thought-out. Highly recommended for ambitious smartphone photographers.

interesting bit of kit very handy as i have a fair few filters fit my iphone 12 pro perfectly easy to use feels well made came well packaged

Positives:-sizing is spot on. I Ordered the 6.1” version and it fits my iPhone 13 Pro perfectly.-easy to put together and attach-can be used with other filters of the same size (67mm)-good quality glassNegatives:-does not work with my phone case-attracts dustNotes:Comes in a shell case with cleaning cloth and spare rubber/silicone gripsHighly recommended

This came well presented in retail packaging, so would make a great gift. It comes with its own storage case, which is an excellent idea. It is so easy to use and attaches straight to my daughter’s Mag safe case. The 67mm thread is universal, so it can be used with existing filters, which is fantastic. The quality is also there, and this does indeed scream it. For the price, £39.99, I am very impressed and can recommend. It is rather exciting to see the filter shift right before my eyes on screen!

Is great! amazing add on for better and professional look pictures but I did found a con... It is not suitable with cases. I have 4 and tried it with all of them and doesn't work. So if by any reason and bad luck my phone sleep out of my hands this will not be protected and will probably have a damage phone as well as the filter. Works magnetically.. make sure your magnetic case doesn't have a bit of lift edges.

+ uses MagSafe and it has strong magnetic attraction. Therefore it won't fall down with filter installed+ ease of use+ carrying case+ minimalistic design+ you can attach another MagSafe accessory on top of it+ slim, light and small+ filter can be used with usual camera lens (used it with Sigma 10-18 mm f/2.8 Sony E Mount lens)+ well-made+ better than usual mounts for filters+ ND filter is handy in a lot of situations- I've got a feeling that screwing filter on camera lens may break filter threads on it in the long time

This is really nicely made, heavy and feels like a quality piece. I have a few bits and pieces from K&F and they've always seemed to deliver to be honest. This fits onto my iPhone 16 Pro and magnets on strong, and I don't even need to take off my case. I thought that might kill this a little bit actually, if I had to remove my case and faff about, but nope, this just stuck right on there, no worries at all. It did seem to be a pretty easy fit too, so I would guess this fits on most every case universally. The mount has a really soft, plush feeling sponge pad to protect the phone, if you were to stick it on without a case, and the whole thing just feels nicely made and well thought out. The filter itself is beautiful, with really nice glass. It works very well, and the ring rotates in a smooth, weighted way, which feels good to use, and definitely adds to the overall feel. It comes in a nice little hard carry case that has plenty of room for this and any other filters you might have, and a microfiber cloth for cleaning. Overall I'm really happy with it, it's exactly what I want from a filter and the actual housing system is really nicely made. Good stuff.