Overview

The Vivitar Series 1 70-210mm f/3.5 Macro (I) Kiron is a heavy, all-metal lens with smooth push-pull zoom and precise build. Optically, it delivers sharpness across the zoom range, pleasant bokeh with a slight swirl wide open, and a constant f/3.5 aperture. Weaknesses include lens creep when pointed down, rotating filter threads, and corner fall-off at wider apertures. It suits photographers seeking a high-quality, inexpensive manual-focus tele zoom for film or full-frame digital, but its weight and size make it best on larger cameras.