Sigma 100-400mm FE firmware update can be performed by Sigma only

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This is an odd situation: To update the lens firmware Sigma asked you the send it the lens to their service center: sigma-global.com/en/lenses/c020_100_400_5_63

Ver.02

  • It has improved the phenomenon whereby the lens’s optical stabilizer effect differs depending on the shutter type and drive mode used.
  • It has corrected the phenomenon whereby the lens firmware cannot be updated via the camera.
    * Customers cannot update to lens firmware Ver.02 by themselves. After the lens has been updated to Ver.02 by SIGMA, the user can then update all future lens firmware via the camera.
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