MARUMI 52MM HAZE UV FILTER

Description

MARUMI

MARUMI UV filter 52mm MC-UV 52mm for ultraviolet absorption MC-UV (Haze)

Product description (Marumi UV52MM)

The Marumi 52mm Haze UV Filter is a multi-coated, Japanese-made optical glass filter that absorbs ultraviolet light to reduce atmospheric haze and protect your lens. It is often praised by users as a high-quality, value-priced alternative to more expensive brands like Hoya and B+W.

Product features

Core Optical Features

• UV Filtration (L390/L41): Specifically engineered to block ultraviolet rays at wavelengths of 390 nm (standard) or 410 nm (Sharp Cut) and below. This eliminates the bluish cast and atmospheric haze often found in coastal, sunny, or mountainous landscape photography.
• High Transmittance: Offers approximately 98.2% to 98.7% light transmission, ensuring that the filter remains clear and does not affect color balance or image sharpness.
• Anti-Reflective Multi-Coating: Features up to 8 layers of specialized coating on both sides of the glass to maintain a reflection rate under 0.4%–0.6%, significantly reducing internal reflections off the camera’s sensor. 

Physical Build & Handling

• Ultra-Slim Profile: Most modern models (Fit + Slim, DHG) use a low-profile aluminum frame to prevent vignetting (dark corners), making them safe for use on wide-angle lenses.
• Double-Threaded Design: Despite the thin frame, the filter is double-threaded, allowing you to attach a standard lens cap or stack other filters on top.
• Advanced Materials: Higher-tier models utilize Corning® UV Clear Glass or Schott B270i German optical glass for superior durability and clarity.
• Eco-Friendly: Manufactured using lead-free materials and supplied in environmentally conscious packaging. 

Maintenance & Protection

• Physical Barrier: Acts as a permanent “sacrificial” layer to protect expensive lens elements from scratches, moisture, dust, and fingerprints.
• Optional Specialized Coatings:
  • Water & Oil Repellent: Found on “Plus” or “Super” models, allowing liquids to bead off for easier cleaning.
  • Anti-Static Coating (ASC): Available on EXUS models to repel dust and dirt.

Product specifications (Marumi UV52MM)

Technical Performance

• UV Cutoff: Standard models (MC-UV, Fit + Slim) cut ultraviolet light at 390 nm and under. Premium models (EXUS) utilize L41 Sharp Cut glass, blocking rays up to 410 nm.
• Light Transmittance:
  • Fit + Slim / FS Plus: >98.7% average (400–700 nm).
  • EXUS / DHG: ~98.2% to 98.3% average.
• Reflectance Rate:
  • Standard / Fit + Slim: Under 0.6%.
  • FS Plus / DHG: Under 0.4% to 0.5%.
  • EXUS: Under 0.3%. 

Physical Construction

• Thread Size: 52mm (Standard 0.75 pitch).
• Frame Material: Lightweight, high-strength aluminum with a satin finish to prevent internal reflections.
• Frame Profile:
  • Standard: Standard depth.
  • Fit + Slim: Ultra-thin (~5mm thickness) to prevent vignetting on wide-angle lenses.
• Glass Type: Heat-resistant tempered optical glass. Premium models (EXUS/DHG) use Corning® UV Clear Glass or German Schott B270i.
• Weight: Approximately 11g (Fit + Slim models) to 20g (standard models). 

Coating & Protection

• Layer Count:
  • Fit + Slim: 8 layers (4 per side).
  • DHG UV: 10 layers total.
  • EXUS: 22 layers total.
• Resistance:
  • Standard MC-UV: Generally not water-resistant.
  • FS Plus / Super / EXUS: Features water-repellent, oil-repellent, and fingerprint-resistant coatings.
  • EXUS Series: Includes an Anti-Static Coating (ASC) to repel dust.