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    Tamron 80-250 mm F/ 3.8-4.5 Adaptall model QZ-250M
    Tamron 80-250 mm F/ 3.8-4.5 Adaptall model QZ-250M

    Tamron 80-250 mm F/ 3.8-4.5 Adaptall model QZ-250M

    80–250mm · f/3.8–4.5

    Overview

    The Tamron 80-250mm F/3.8-4.5 Adaptall QZ-250M is a compact two-ring zoom, successor to the constant f/3.8 Z250, but lacks a tripod mount. Optically, it is sharp stopped down (e.g., f/8) but soft wide open, with noticeable chromatic aberration and fringing. Its predecessor Z250 performs better at 200mm and wide open, while the QZ-250M is softer wide open than the Z250. Build is more compact but without tripod collar. Suits users who prioritize stopped-down sharpness and compactness over wide-open performance.