Overview

The Vivitar 135mm f/3.5 T-mount is a compact, lightweight telephoto lens from the 1960s, made by Tokina and also sold under Sears and Dollonds-S labels. It features 15 aperture blades for soft bokeh and a clickless preset aperture, ideal for video, but stopped down it can produce a lighter circle artifact in the center. Optical quality is decent but not excellent; it's not the sharpest, offering a 'gentle' look. The lens requires stop-down metering and manual diaphragm operation. It suits users who prioritize character and compactness over sharpness, especially for dreamy landscapes or video.