SUMMARY
A comparison between the 7Artisans 135mm f/1.8 and Viltrox 135mm lenses highlights a tradeoff between autofocus performance and a more portable, affordable option. The 7Artisans lens, priced at $689, is lighter and features a traditional clickable aperture ring preferred for portraits. While the Viltrox is sharper wide open, the 7Artisans matches its sharpness at f/2.8. The 7Artisans' STM autofocus tracks well but can struggle with fast-moving subjects, whereas the Viltrox uses a VCM system. Ultimately, the 7Artisans lens is favored for its size, handling, and sufficient image quality for many professional needs.
TAKEAWAYS
7Artisans 135mm f/1.8 is lighter, smaller, and $689 cheaper than the Viltrox 135mm.
Viltrox is sharper wide open, but both lenses are nearly identical at f/2.8.
7Artisans features a preferred clickable aperture ring for portraits; Viltrox has an LCD screen.
7Artisans' STM autofocus is good but may lag with very fast subjects.