I’ve been a fan of K&F Filters and accessories for some time now, and have come to appreciate the consistency and quality of the brand. The majority of my lenses live their lives with K&F UV protective filters on their front element.

Like many others, as the caliber of mobile phone imagery and videography have improved to levels of near professional quality, I’ve begun to concentrate more energy into taking advantage of those attributes, not to mention the portability. Both in videography and photography, whether using a full-size camera or a high-end mobile phone, I consider a CPL filter essential. It also has the effect of neutral density.

In hand, the K&F Concepts Magnetic Circular Polarizer Filter System gives the impression of quality. Between its matt black finish, the 52mm magnetic adapter ring and the reflection of the rich multi-coatings, it’s an impressive filter. Interestingly, despite the fact that the adapter and filter are attached magnetically, the CPL still rotates freely, as is necessary to adjust its angle; it must be magic.

The only disappointment in the system for me is the lack of usable threads on the front of the CPL; I prefer to use lens shades and would like some means of attaching them. Or to have the option of stacking another filter or step-up ring onto the system. That said, step-up/down rings with appropriate 52mm threading can be attached to the threaded adapter ring, for example a 49mm – 52mm step up ring will allow the use of the 52mm CPL on a 49mm threaded lens. On the other hand, the lens I’ve included in the pictures takes 52mm filters and its built-in lens shade works fine with the 52mm K&F Concept Magnetic System, but the lenses front cap doesn’t. I’ve looked through the K&F Concept Store and they have a number of other magnetic filters, filter sizes and adapter ring combinations in their magnetic eco-system, most of which do include a magnetically attachable front lens cap, including circular polarizers; why they don’t include one with this combination I wouldn’t know, but I think they should. The convenience of the system is negated if in order to protect the font element of my lens I need to unthread the adapter ring in order to place on a lens cap. I didn’t note anywhere in their Amazon store that a compatible magnetic lens cap is being sold separately.

In my view, a complete system, and I’m not referring solely to K&F Concept in this regard, would include magnetically attachable lens caps and lens shades as part of the eco-system. Or if not that, front threads on the attached filter, or corresponding adapter rings, that are the same size as the rear threads of the adapter, allowing for a more versatile system, and one that would accept the users currently owned screw mount filters.

In any event, I have complete confidence in the quality of K&F Concepts filters and their products generally. They are a reliable company that stands behind their product lines. If you’re interested in a magnetic filter system, including this one, I suggest perusing the K&F Concept Amazon Store to see all of the available options. Have fun.