Overview

The Revuenon 135mm f/2.8 MC is a well-built, all-metal M42 lens with smooth focus and aperture rings. Optically, it is soft in the center and very soft in the corners wide open, with chromatic aberration and low contrast; center sharpness improves by f/4 but corners remain soft, and flare handling is poor. Bokeh is smooth and pleasant. It suits photographers seeking a characterful, budget-friendly telephoto for portraits or creative work, especially on mirrorless cameras via adapter.