This Universal 67mm Threaded Filter Adapter from SmallRig allows any standard 67mm threaded filter to easily attach to virtually any smartphone. The design of the adapter opening accommodates various mobile phone lenses without obstructing the camera. The large diameter prevents vignetting from stacking multiple filters. A clamp with a locking knob securely fastens the adapter to the phone, while anti-scratch padding on both sides protects the smartphone's finish and screen. The clamp opening range of 6 mm to 15 mm ensures compatibility with most phone models. It can also be used with 67mm magnetic filters when paired with a threaded-to-magnetic adapter, available separately.