The Irix Firefly 11mm f/4 is an ultra-wide full-frame manual focus lens designed for landscape, architecture, interior, and astrophotography. Its rectilinear optical design minimizes distortion while delivering an expansive 126° angle of view with excellent edge-to-edge sharpness.

Built with a lightweight weather-sealed composite body, the lens features Focus Lock, rear gel filter support, and advanced optical elements for reduced chromatic aberration and flare. It is well suited for photographers seeking precise manual control and ultra-wide image capture.