Sigma 105mm WR (Water Repellent) Ceramic Protector Filter

The Sigma 105mm WR Ceramic Protector Filter is a durable, clear filter that protects your lens from impacts, scratches, and other elements. Made with ceramic materials, it offers superior protection while maintaining optimal image quality. Keep your lens safe with this industry expert-approved filter.

• Clear Protection Filter
• Prevents Damage to Lens
• 1x Filter Factor, +0 Stop
• 99.76% Transmittance
• No Effect on Image
• Clear Glass Ceramic Construction
• Scratch- and Shock-Resistant
• Water-Repellent Coating
• 105mm Front Threads
• Durable Acrylic Filter Case

The Sigma 105mm WR Ceramic Protector Filter is the ideal choice for any photographer looking to maintain their lens' image quality while ensuring it is well-protected. With a clear glass ceramic substrate and a shock- and scratch-resistant build, it offers a 99.76% transmittance value and greater hardness and flexibility than other types of glass. The water-repellent coating further adds to its durability, resisting water droplets, fingerprints, and dust. Perfect for use in tough shooting conditions, this filter is a must-have for any photography expert.

• Clear protection filter guards the front lens element from a variety of impacts and scratching without affecting image quality.
• Clear glass ceramic is a highly durable substrate that has a greater hardness than chemically-strengthened glass and more flexibility than sapphire crystal glass.
• Unique construction has a Vickers hardness number of 700HV, making it both scratch- and shock-resistant. This hardness also lessens the likelihood of scratching or chipping that can lead to the filter shattering.
• Rather than only the surface structure being hardened, clear glass ceramic involves a heat treatment process that precipitates microcrystals of a mineral called spinel in order to achieve consistent, even strength across the entire filter surface. This strength also enables the design of the filter to be notably thin and lightweight.
• A water-repellent (WR) coating has been applied that, in addition to preventing water and oil from adhering to the filter surface, also helps to minimize ghosting and flare. This coating reflects 0.24% of light, giving an overall transmittance value of 99.76%.
• The WR coating also serves as an anti-static coating, which helps to repel dust or other particles from clinging to the filter surface.
• The included hard acrylic case protects the filter when not in use and has been designed to prevent accidental, unwanted opening.