Lens Lab
    Viltrox PFU RBMH 20 mm f/ 1.8 ASPH
    Viltrox PFU RBMH 20 mm f/ 1.8 ASPH

    Viltrox PFU RBMH 20 mm f/ 1.8 ASPH

    20mm · f/1.8

    Overview

    The Viltrox PFU RBMH 20mm f/1.8 ASPH is a fully manual ultra-wide lens for Sony FE, built like a solid metal block (775g) with smooth, dampened rings and a stepless aperture ring favored by moviemakers. Optically, it offers very low distortion (0.5% pincushion) but heavy vignetting (2.4EV at f/1.8) and noticeable coma in full-frame corners. Resolution is good but not flawless on high-MP sensors. It lacks electronic contacts, so no EXIF or auto-correction; filters require the included metal hood (82mm). Best suited for manual-focus enthusiasts and videographers who value build and low distortion over convenience.