Overview

The Opteka 500mm f/8 mirror lens is a compact, lightweight manual-focus lens offering good value for its low price. Its catadioptric design reduces contrast due to a central obstruction. Build quality is good with mostly metal construction and a smooth, long focus throw. Weaknesses include paper-thin depth of field, no autofocus, and infinity not at the hard stop. It suits static subjects like wildlife or astrophotography but not fast action.