Overview

The Yashica DSB 75-150 mm f/3.9 is a manual-focus zoom for Contax/Yashica mount, built mainly of metal with rubberized controls. Optically, it shows very little vignetting and nice color rendering, but bokeh is average. Weaknesses include a slow f/3.9 aperture and only 2 aperture blades. Overall optical quality is rated 4/5. It suits users seeking a solid vintage zoom with pleasant colors on mirrorless cameras, though it may not satisfy those wanting fast apertures or smooth bokeh.