The PolarPro 4x5.65 Nano Armor UV filter is a rectangular 4x5.65 protective filter. It is sized for a matte box tray rather than threading onto the lens. Additionally, the 4x5.65 Nano Armor UV features a 16-layer multicoating that minimizes internal ghosting and reflections.
Key Features
UV/Protective Filter
A protective filter guards the front element against dust, moisture and impact, and is the cheapest part of the optical path to replace.
Rectangular Tray Format
The filter slides into a matte box tray rather than threading onto a lens, so one filter serves every lens in a set regardless of front diameter.
4x5.65 Tray Size
The filter is cut to 4x5.65 and fits a matte box tray of that size. Tray sizes are not interchangeable, so a 4x5.65 filter will not seat in a 4x4 stage.
UV / Protective
The filter is optically clear and exists to take the damage a front element would otherwise take.
16-Layer Multi-Coating
The glass carries a 16-layer multicoating that minimizes internal ghosting and reflections.
