Overview

The Vivitar 400mm f/5.6 Auto-Telephoto is a vintage manual-focus lens. Optically, it offers decent sharpness when stopped down but can be soft wide open, with some chromatic aberration and flare issues. Build quality is typical of its era: all-metal construction but with a somewhat stiff focus ring. It is lightweight for its focal length, making it suitable for handheld use in good light. This lens is best for photographers on a budget seeking a long telephoto for static subjects, but it is not ideal for fast action or low-light work.