Black Friday 2017: Venus Optics Laowa 12mm f/2.8 Zero-D at $899 (reg. $949)
At a glance: EF-Mount Lens/Full-Frame Format Aperture Range: f/2.8 to f/22 Three Extra-Low Dispersion Elements Two Aspherical Elements Rectilinear Design, Low Distortion Frog Eye Dust & Water-Repellent Coating Manual Focus…