2018.02.09 Introducing the new Front Conversion Service for SIGMA 14-24mm F2.8 DG HSM | Art LensesSupport
2017.09.08 Chargeable service for installing the Rear Filter Holder FHR-11 on SIGMA 14mm F1.8 DG HSM | Art for Canon LensesAccessoriesSupport
2017.08.18 Firmware Update for SIGMA 24-70mm F2.8 DG OS HSM | Art for SIGMA/CANON and SIGMA MOUNT CONVERTER MC-11 SA-E / EF-E ProductsLensesAccessoriesSupportFirmware