SIGMA 150-600mm F5-6.3 DG DN OS | Sports for Sony E-mount firmware download resumes Thank you for purchasing and using our products. We are pleased to announce that the download of firmware for SIGMA 150-600mm F5-6.3 DG DN OS | Sports for Sony E-mount, which had been suspended, has resumed. The changes in this firmware … Continue reading Multiple Sigma Lens and AF Adapter Firmware Updates Released