Urth Magnetic Base Lens Filter Kit

The kit includes a magnetic adapter ring that screws onto your lens threads like a standard filter. Once that base is attached, the UV and circular polarizing filters snap onto the front magnetically, allowing you to swap them instantly without having to screw them in.

Yes, the magnetic system is designed for stacking. You can attach the UV filter to the base ring and then snap the circular polarizer directly onto the front of the UV filter.

Because the magnetic system adds a small amount of thickness compared to a standard screw-on filter, there is a slight risk of vignetting on ultra-wide lenses. If you are shooting wider than 24mm on a full-frame camera, you may notice some darkening in the corners.

Standard lens caps typically rely on the internal threads of the lens or the front of a filter to grip. Since this system uses a magnetic adapter, your standard lens cap may not fit securely once the magnetic base is installed. You will likely need to use a magnetic lens cap or remove the base ring to reattach your original cap.

The 30-layer nano-coating is specifically engineered to repel water, oil, and dust, which makes cleaning smudges significantly easier. While it is scratch-resistant, it is still glass, so you should treat it with the same care you would any high-quality optical element.