Lens Lab
    Tamron SP 70-210 mm f/ 3.5-4 Adaptall-2 model 52A
    Tamron SP 70-210 mm f/ 3.5-4 Adaptall-2 model 52A

    Tamron SP 70-210 mm f/ 3.5-4 Adaptall-2 model 52A

    70–210mm · f/3.5–4

    Overview

    The Tamron SP 70-210mm f/3.5-4 Adaptall-2 model 52A is a two-touch macro zoom offering continuous focus to 1:2 reproduction at 210mm, praised by adaptall-2.com as an optical achievement. However, online sentiment is lukewarm, with Pentax Forums rating it lower than the 19AH. Build quality is good, though some copies may exhibit slight haze on rear elements. It suits photographers seeking a versatile macro zoom, but those prioritizing sharpness may prefer alternatives.