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The EXUS Lens Protect SOLID represents the highest-grade protection filter in Marumi’s lineup, designed especially for advanced photographers using large-aperture lenses. It offers approximately seven times the strength of Marumi’s regular protection filters*, making it ideal for use in harsh environments such as mountain climbing or trail photography, where lenses are exposed to potential impact.
*Measured by Vickers hardness (Hv), a standardized method that quantifies the hardness of a material by pressing a diamond-shaped indenter into its surface and evaluating the size of the resulting impression.
This video demonstrates an impact resistance test using a hammer, clearly showing how much stronger the hardened glass is compared to ordinary filter glass.
Marumi’s protection filters also feature a 2.0 mm thick optical glass, whereas many other brands use glass around 1.0 mm thick. This design choice reflects Marumi’s uncompromising philosophy of “ensuring reliable lens protection.” The added thickness provides up to five times greater impact resistance.
Unlike products that claim to be “dust-free” simply because the filters help keep dust off the camera lens, the EXUS Series, including EXUS Lens Protect Solid, delivers its dust‑repellent benefits through an advanced Anti-Static Coating (ASC) that works directly on the filter surface—helping to minimize dust adhesion far beyond simply protecting the camera lens. This significantly reduces the effort needed to keep your filter clean.
Unlike products that advertise “0.2%” without specifying the measurement range—often achieving that figure only at a single wavelength—the EXUS Lens Protect SOLID maintains an average reflection rate of below 0.2% consistently across the 420–680 nm spectrum. This ensures advanced lens protection while preserving the full optical clarity and performance of your lens.
