Lens Lab
Vivitar AF Series 1 70-210 mm f/ 2.8-4 Apochromatic (Cosina)
70–210mm · f/2.8–4
Overview
The Vivitar AF Series 1 70-210mm f/2.8-4 Apochromatic (Cosina) is the fourth version of this lens, characterized by variable aperture and 1:2.5 close focus. It is lighter but has inferior build quality compared to earlier versions. Optically, it is not sharp wide open, with blooming and softness at the wider end, though stopping down improves performance. Bokeh is smooth. This version suits users who prioritize bokeh and compactness over peak sharpness and build.