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.

Use it with a gradient ring for my iPhone 24 Pro Max with a beastcage

Using it with a gradient ring for my iPhone 24 Pro Max with a beastcage

At this point I may have to start with a palm-sized collection of video lights because for some reason I just can't get enough of them. But with this light from K&F I will compare it to my Zeniko VS5 Bi and my Neewer RGB62. From a color accuracy perspective, these come pretty close when dialed in at 2500K versus the competitors. I think the varying level of diffusion from each light source gives it a slightly different saturation, but the colors look the same. As far as diffusion goes, I'd say this is the heaviest of the three - the diffusion cover is also the lowest profile, while the Zeniko's cover is curved outwards and is made of soft silicone material, while the K&F's is plastic and not removable. It's also not as soft compared to the Neewer. There are magnets on the back of these lights, and I'm pleasantly surprised to say that the K&F has the strongest magnet compared to the other two. Not much, but enough to feel the difference. The Zeniko was the weakest and felt like it could fall off at any moment. Now on to the MAIN point of why I like this light so much. It is the easiest to turn on and use. It has two knobs and a button, and with one knob the light turns on IMMEDIATELY. Most video lights require a hard press for 2-3 seconds before turning on, but not this one. It turns on right away, which is so much more valuable than you might think. The buttons are also very easy to use and super friendly. All in all, I love these lights!

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.

First let me say that this range finder is very accurate. It's super light and easy to use and I like that it has the toggle switch for the tilt function right on the outside. It also comes with a protective cover that you can attach to your bag. There are just a few small hints that I didn't like. The plastic itself feels very thin and smooth, making it flimsy and cheap in the hand. Also, I think the charging port needs some kind of cover to keep moisture out. Overall, this is a great rangefinder at an excellent price. It is perfect for golf beginners.

Small, Compact and light. Thoughful engineering to allow camara/gimble cover to also attach simultaneously is appreciated.

I experimented with this diffusion filter. It softens the shadows. I can see where this filter would be useful for portraits. I don't have that many uses for it, but it was fun to experiment with. I had never tried magnetic filters before. The package came with an adapter ring, the filter and a cover for the filter. Ring, filter and cover were easy to install. They stayed in place and when I wasn't using the filter I could easily remove it to shoot.

The problem occurred with the adapter ring. I couldn't remove it or anyone else. I even used a rubber jar opener. So I contacted customer service. They worked with me but nothing I did was able to move the adapter ring. Since this prevented me from putting my own CPL filter back on, the company sent me a magnetic CPL filter for my problems. First class customer service!