Viltrox's fast wide-angle for Canon M — the AF 23mm f/1.4 for the discontinued EF-M system.
The Viltrox AF 23mm f/1.4 is a fast autofocus prime from Viltrox for the Canon EF-M mirrorless system, providing a 37mm full-frame equivalent field of view on the APS-C sensor. The Canon EF-M mount was used exclusively in Canon's M-series mirrorless cameras, which have been discontinued.
The lens delivers 23mm (37mm equivalent on APS-C) at f/1.4 maximum aperture with native Canon EF-M electronic coupling for autofocus and EXIF, an APS-C image circle, and Viltrox's autofocus system. It was aimed at Canon M-series users who wanted fast-aperture AF primes beyond Canon's limited native EF-M prime range.
The Canon EF-M system's discontinuation is the primary context for this lens — Canon has transitioned to RF-S for APS-C mirrorless, and EF-M bodies will not receive successors. However, existing EF-M users benefit from affordable AF primes from Viltrox that Canon itself never provided. The 37mm equivalent is a natural street and general-purpose perspective.
Test autofocus compatibility and speed on a Canon EF-M body. Verify sharpness at f/1.4. Inspect mount for secure attachment. Note that as a discontinued system, repair support and accessories are increasingly limited. Confirm Viltrox firmware is current for best EF-M compatibility.