Lens Lab
Promaster AF 11-18 mm f/ 4.5-5.6 XR EDO Aspherical
11–18mm · f/4–5.6
Overview
The Promaster AF 11-18mm f/4.5-5.6 XR EDO Aspherical (rebadged Tamron) is a compact, lightweight ultra-wide zoom for APS-C DSLRs. Optically, it shows simple barrel distortion at the wide end, easily correctable, and has good center sharpness but soft corners at wider apertures. Build quality is plasticky with smooth but undamped rings; autofocus is slow but fast. It suits budget-conscious users needing an ultra-wide zoom, especially Minolta owners with few alternatives.