Viltrox AF 75mm f/1.2 E Pro STM ED IF APS-C Lens for Sony E-Mount, Black Review

The Viltrox AF 75mm f/1.2 E Pro STM is a fast portrait prime designed for Sony E-mount APS-C cameras, delivering an effective focal length of roughly 112mm in full-frame terms. With its bright f/1.2 aperture, this lens targets creators looking for strong subject separation and low-light capability without the expense of native Sony glass. The lens features autofocus driven by a stepping motor (STM), extra-low dispersion (ED) glass, and an internal focusing (IF) design to minimize focus breathing and front-element movement. At $492, it sits in the affordable third-party prime category, competing with similar offerings from Sigma and Samyang. Build quality includes weather-resistant construction and a 77mm filter thread, and the lens ships with caps and a hood. Because it's an APS-C lens, it won't cover full-frame sensors, so it's best suited to users committed to crop-sensor bodies or those who plan to stay in the Sony APS-C ecosystem for portraiture and close-up work.