PolarPro Helix MagLock CP Filter

Overview
The PolarPro Helix MagLock CP filter is a round circular polarizer. It attaches magnetically to a compatible adapter ring rather than threading onto the lens, which makes it quick to swap between shots. Its circular polarizer helps minimize reflections and glare from non-metallic surfaces without affecting autofocus or auto exposure. Additionally, the Helix MagLock CP features a 16-layer multicoating that minimizes internal ghosting and reflections.
Features
Key Features
Polarizing Filter
A polarizing filter cuts reflected light, deepening skies and clearing glare from glass and water.
Round Screw-In Format
The filter threads directly onto the front of a lens, which suits handheld and location work where a matte box would be in the way.
Circular Polarizer
Rotating the front ring varies how much reflected light is cut. A circular polarizer is used rather than a linear one so that autofocus and metering are unaffected.
16-Layer Multi-Coating
The glass carries a 16-layer multicoating that minimizes internal ghosting and reflections.
Magnetic Mount
The filter snaps onto a magnetic adapter ring instead of threading on, so filters can be swapped one-handed. The adapter ring is a separate purchase.