Lens Lab
    Tamron SP AF 28-105 mm f/ 2.8 LD Aspherical
    Tamron SP AF 28-105 mm f/ 2.8 LD Aspherical

    Tamron SP AF 28-105 mm f/ 2.8 LD Aspherical

    28–105mm · f/2.8

    Overview

    The Tamron SP AF 28-105mm f/2.8 LD Aspherical offers a versatile constant f/2.8 aperture in a compact design. Optical performance varies: sharpness is decent at 85-105mm wide open but soft at 28-50mm f/2.8, improving when stopped down. Vignetting is notable at wider apertures, and distortion includes pincushion at mid-range and moustache at 28mm. Build is solid but heavy, with a large 82mm filter thread and no tripod collar. It suits event photographers needing a fast zoom, but those requiring edge-to-edge sharpness at wide apertures may look elsewhere.