28–200mm · f/3.8–5.6
The Sigma AF Zoom 28-200 mm f/3.8-5.6 is a compact travel zoom covering 28-200mm with macro capability up to 1:3.8 at 200mm. Optical strengths include good correction for aberrations via two aspherical elements, though performance varies across the zoom range. Weaknesses are not explicitly noted in excerpts. Build features a non-rotating front barrel for easy polarizer use and a zoom lock to prevent creep. It suits travel and snapshot photographers seeking a versatile all-in-one lens.