Irix 11mm f/4 ' Firefly' lens review with samples (Full-frame and APS-C) - YouTube
Irix 11mm f/4 Firefly Lens Review
Review: IRIX 11mm f4 Blackstone (Canon EF Mount)
Irix 11mm Review
Irix Unveils Ultra-Wide 11mm f/4 Lens with 126° View and Minimal Distortion | PetaPixel
Irix 11mm: designed for DSLR cameras by Jose Antunes - ProVideo Coalition
11mm Photo lens (EN) - Irix lenses were designed with both the effort and experience, of not only engineers, but also photographers. Swiss precision and Korean innovation create