Sigma Announces Firmware Update for Its Sony E-mount Lenses

Thank you for purchasing and using our products. We are pleased to announce that a new firmware update for SIGMA’s interchangeable lenses for Sony E-mount is now available.

Applicable Products

  • SIGMA 14mm F1.8 DG HSM | Art for Sony E-mount
  • SIGMA 20mm F1.4 DG HSM | Art for Sony E-mount
  • SIGMA 24mm F1.4 DG HSM | Art for Sony E-mount
  • SIGMA 35mm F1.4 DG HSM | Art for Sony E-mount
  • SIGMA 50mm F1.4 DG HSM | Art for Sony E-mount
  • SIGMA 85mm F1.4 DG HSM | Art for Sony E-mount
  • SIGMA 135mm F1.8 DG HSM | Art for Sony E-mount

Benefits of the update

  • It has improved the AF speed.
  • It has improved the AF accuracy when the Face Detection setting is turned on, while using AF.
  • With the Sony a9 or Sony a6400, it has corrected the phenomenon whereby the AF stopping position occasionally had a variation when shutter was half pressed repeatedly during auto focusing on the same subject.

* For customers who have Sony a9, please update the camera’s firmware to Ver.5.00 or later.

Applicable product

  • SIGMA 105mm F1.4 DG HSM | Art for Sony E-mount

Benefits of the update

  • It has improved the AF accuracy when the Face Detection setting is turned on, while using AF.
  • With the Sony a9 or Sony a6400, it has corrected the phenomenon whereby the AF stopping position occasionally had a variation when shutter was half pressed repeatedly during auto focusing on the same subject.

* For customers who have Sony a9, please update the camera’s firmware to Ver.5.00 or later.

Applicable product

  • SIGMA 40mm F1.4 DG HSM | Art for Sony E-mount

Benefits of the update

  • With cameras which incorporate DMF mode, when using the AF while the MF assist function is turned on, it has corrected the phenomenon whereby it automatically displays a magnified view as it gets in focus.

* For customers who have Sony a9, please update the camera’s firmware to Ver.5.00 or later.

To update the firmware, please refer to this link.

Posted: 7/18/2019 5:44:09 AM CT   Posted By: Sean
Posted to: Sony News    Categories: Sigma News, Sigma Firmware Updates
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