Filter Hoya HD CIR-PL 52 mm

The Hoya HD CIR-PL 52 mm is a circular polarizing filter from Hoya's HD series, made for photographers who want stronger sky colours and control over reflections when shooting with 52 mm filter-thread lenses.

• Filter diameter: 52 mm
• Hardened glass that the manufacturer rates as four times more resistant to cracking and scratching than standard optical glass
• Uses the type of polarizer found in high-resolution LCD displays, with 25% higher light transmission than the polarizing film in Hoya's other series
• 8-layer anti-reflective coating that resists water, grease and scratches, so the filter is easier to keep clean
• Average light transmission of 99.35% across 400-700 nm (the visible spectrum)
• Ultra-thin, low-profile black frame that prevents vignetting on very wide-angle lenses
• Glass mounted under high pressure for a precise, durable fit
• Rotating ring sets the strength of the polarizing effect
• Deepens blue skies, removes glare from foliage and cuts reflections from non-metallic surfaces such as glass and water