Best Sigma Lenses Under £1,000 in 2026

Weighing just 142g, this 100-400mm f/5-6.3 zoom pairs a 4-stop stabilizer and stepping-motor AF with full weather sealing on Sony E-mount. Its brass bayonet mount, rounded 9-blade diaphragm, and anti-flare coatings add ruggedness and smooth bokeh in a portable form. Landscape and wildlife photographers who prioritize lightweight handheld reach will find it ideal, though it struggles for macro.