Review: Fujifilm 23mm f1.4 (X series) - The Phoblographer
Amazon.com : VILTROX 23mm Fuji F1.4 New Version 23mm f/1.4 X-Mount Lens Auto Focus Large Aperture APS-C Lens for fujifilm X-Mount Camera X-pro 3 X-Pro 2 : Electronics
Fujinon XF 23mm f/1.4 R (Fujifilm) - Review / Test Report
TTArtisan APS-C 23mm F1.4-APS-C Lenses-TTArtisan Official Website