Irix Revo CPL 37mm Circular Polarizer Filter

Outdoor photographers working near water, glass, or foliage will appreciate the Irix Revo CPL 37mm. This circular polarizer cuts through glare and reflections, letting you capture clear skies, vivid colors, and clean views through windows. Its slim aluminum frame and multi-coated glass are built for everyday field use.

Key specifications

• Filter type: Circular Polarizer (CPL)
• Filter diameter: 37 mm
• Optical material: Super Resistant (SR) optical glass
• Coatings: 16-layer anti-reflective, hydrophobic, oleophobic, anti-scratch, nano-coating
• Frame material: Lightweight aluminum alloy
• Frame type: Slim / low profile
• Threading: Front and rear (for stacking or lens cap)
• Water repellent: Yes
• Oil repellent: Yes
• Scratch resistant: Yes
• Light transmission: High
• Polarization efficiency: High

Why choose it

The Revo CPL delivers reliable polarization without adding bulk. Its 16-layer coating reduces flare and ghosting while repelling water and oil, so the filter stays cleaner longer. The slim profile minimizes vignetting on wide-angle lenses, and the dual threading lets you stack filters or attach a lens cap with ease.

Ideal use cases

• Landscape photography: deepen blue skies and boost foliage saturation
• Architecture: eliminate reflections from glass and polished surfaces
• Outdoor and travel: protect your lens while enhancing color and contrast
• Water scenes: cut through surface glare to reveal underwater detail

Good to know

The filter fits any lens with a 37 mm filter thread. It comes with a protective case for storage. For best results, rotate the filter ring while composing to fine-tune the polarization effect. The aluminum frame is both lightweight and durable, suitable for regular use in the field.