Browsing: Third-party Lenses

Third-party Lenses

Sigma 135mm f/1.8 Art Review: Lab-Tested Performance vs Sony GM

Estimated Reading Time: 9 minutes The Sigma 135mm f/1.8 DG HSM Art lens achieves 90% center MTF sharpness at f/1.8—matching lenses costing $500 more. According to…

Third-party Lenses

Sigma 17-50mm f/2.8 EX DC OS HSM Review: Complete Field Test & Lab Analysis 2025

Estimated reading time: 9 minutes According to independent lab testing by LensRentals, the Sigma 17-50mm f/2.8 EX DC OS HSM delivers professional-grade sharpness that matches manufacturer…