Setup, Compatibility & Care
To use the Urth 100x100mm filter, you must have a 100mm square filter holder system attached to your lens via an adapter ring. Slide the filter carefully into the outermost slot of your holder to prevent light leakage between the filter and the lens front element.
For care, always use a dedicated micro-fiber cloth to wipe the surface. Because of the multi-layer nano-coating, avoid using abrasive chemical cleaners that could degrade the coating over time. When not in use, store the filter in a dedicated pouch to prevent chips or micro-scratches on the glass edges.