Full-frame and 46mm imaging circle. Maximum micro-contrast control and ultra-low chromatic aberration for unparalleled image quality. Large aperture of T1.9 and soft bokeh for beautiful background separation. Rear mount filter mount for a more flexible workflow and creative control for filmmaking. Minimizes focus breathing for a consistent field of view when adjusting focus. Matched in weight and size to other NiSi Athena lenses, eliminating the need for rebalancing on a gimbal when switching between lenses. 77mm filter thread and matched aperture and focus rings across the range for easy use of lens accessories. Focus ring features 300° of rotation with fluorescent focal scales for precise focus pulls. Ideal for shooting feature films, documentaries, or music videos. Offers unparalleled image quality, flexibility, and creative control for filmmakers.