A testament to superior optical engineering, the NiSi 25mm Athena Prime Full Frame Cinema Lens T1.9 for Canon Rf Mount is a high-quality, professional-grade lens that delivers exceptional image quality and creative control for filmmakers and photographers alike. This innovative lens is meticulously designed to offer maximum micro-contrast control and ultra-low chromatic aberration, ensuring unparalleled image clarity and fine detail capture. The large T1.9 aperture facilitates low-light shooting and produces soft, beautiful bokeh for stunning background separation, making it an ideal choice for both photography and videography.The Athena Prime lens series, designed for Rf mount, comes equipped with a unique drop-in filter mount. This feature allows for the easy addition of Nd filters, polarizers, or other creative filters without the need to attach them to the front of the lens.