Sigma 105mm WR Ceramic Protector Ultra Thin Clear Glass Lens Filter

Just as a knight needs armor, your camera lens needs the 105mm WR Ceramic Protector Ultra Thin Clear Glass Lens Filter. This high-quality lens filter, manufactured by the reputable Sigma brand, is designed to safeguard your valuable camera lenses from scratches, dust, and other environmental hazards. Crafted from an innovative material known as Clear Glass Ceramic, this lens filter offers unparalleled protection. Unlike conventional high-strength protective filters that only strengthen the surface, this lens filter is fortified throughout with microcrystals of a mineral called spinel. This special heat treatment ensures consistent strength across the entire filter, making it highly shock-resistant and less prone to cracking from minor scratches or chips.

The Clear Glass Ceramic material boasts a Vickers hardness number of 700HV, indicating a level of hardness significantly higher than chemically strengthened glass used in traditional filters. This superior hardness helps prevent scratches and chips, reducing the risk of filter breakage. Despite its strength, the Sigma WR Ceramic Protector is up to 50% thinner and 30% lighter than previous Sigma filters, thanks to the advanced Clear Glass Ceramic material. This ultra-thin, lightweight design does not compromise on protection, offering over 10 times the strength of a conventional protective filter and over 3 times the strength of a high-strength protective filter made with chemically hardened glass of the same thickness.

In addition to its protective qualities, this lens filter also excels in optical performance. It offers high transmittance, ensuring light passes through evenly across the image, from center to edges. This makes it an ideal choice for photographers seeking to maintain the quality of their images while protecting their lenses. The Sigma WR Ceramic Protector also features a water-repellent (WR) coating, which minimizes flare and ghosting by reflecting only 0.24 % of visible light. This coating also repels water and oil, making it easy to clean fingerprints and other smudges.

Its antistatic function helps prevent dust and other particles from adhering to the filter, further enhancing its maintenance ease. Proudly made in Japan, the Sigma WR Ceramic Protector is compatible with all Sigma lenses and meets the same exacting standards checked with Sigma's proprietary Modulation Transfer Function (MTF) measuring system. It comes with a specially designed acrylic storage case that is both stronger and more flexible than conventional filter storage cases, ensuring your filter is well-protected when not in use. In summary, the 105mm WR Ceramic Protector Ultra Thin Clear Glass Lens Filter is a high-quality, reliable, and effective solution for protecting your camera lenses while maintaining the quality of your photography.