Hoya

Hoya HFOPR037 37mm Fusion ONE Protector Filter

4.6 (57 reviews)

A slim, multi-coated 37mm protector filter that shields your lens without compromising image quality.

$15.90*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Hoya Fusion ONE Protector Filter in 37mm is engineered to provide constant, transparent protection for your lens's front element. Built with Hoya's professional-grade optical glass, the filter is designed to be optically neutral — it does not introduce color shifts, softness, or distortion. What sets the Fusion ONE apart from basic protector filters is its 18-layer Super HMC (Hoya Multi-Coating) treatment, which maximizes light transmission while minimizing ghosting and flare, even when shooting toward bright light sources.

The filter's surface features water-repellent and stain-resistant coatings that cause moisture to bead up and roll off and make fingerprints and smudges easy to wipe clean with a soft cloth. This combination of optical performance and practical convenience makes the Fusion ONE suitable for permanent attachment to your lens, serving as a durable first line of defense against scratches, dust, and accidental impacts. The low-profile filter frame keeps the overall stack height minimal, reducing the likelihood of vignetting — a particularly important consideration at this 37mm size, which is commonly found on compact and wide-angle lenses.

Key Features

Hoya professional grade optical glass

18 layers of Super HMC multi coating for high light transmission and resistance to flare

Stain resistant to protect against finger prints and smudges

Water repellent easy to keep clean

Permanent use protects front element of lens

Specifications

Filter Size
37mm
Series
Fusion ONE
Filter Type
Protector
Coating
18-Layer Super HMC Multi-Coating
Glass
Professional-Grade Hoya Optical Glass
Surface Treatment
Water-Repellent, Stain-Resistant
Frame
Low-Profile Filter Frame
Intended Use
Permanent Lens Protection

Pros & Cons

👍 Pros

  • 18 layers of Super HMC multi-coating deliver high light transmission and effective flare resistance
  • Water-repellent and stain-resistant surface makes cleaning fingerprints and smudges quick and easy
  • Professional-grade Hoya optical glass maintains image sharpness and clarity
  • Low-profile frame design reduces the risk of vignetting on wide-angle lenses
  • Intended for permanent use, providing ongoing protection against scratches, dust, and accidental contact

👎 Cons

  • 37mm size fits a limited range of lenses, typically compact cameras and smaller mirrorless lenses
  • Adds a small amount of additional thickness to the front of the lens
  • Premium pricing compared to basic uncoated protector filters
  • Does not provide UV filtration or polarization — purely a protective element

Frequently Asked Questions

No, the filter uses Hoya professional-grade optical glass with 18 layers of Super HMC multi-coating to maintain high light transmission, so image quality remains virtually unchanged.
Yes, the Fusion ONE features water-repellent and stain-resistant coatings that cause water, fingerprints, and smudges to wipe away easily.
Yes, the Fusion ONE Protector is designed for permanent use as a front-element shield against scratches, dust, and accidental impact without degrading your images.
The low-profile filter frame is engineered to minimize vignetting, making it suitable for use on wide-angle lenses at the 37mm filter size.
A protector filter is designed purely to physically shield the lens element, while a UV filter also blocks ultraviolet light. In practice, the Fusion ONE Protector primarily serves as a high-quality protective barrier.