Sigma Lenses Not Recognized Follow

Known Issue ID: 15445

Issue Summary:

Sigma lenses with firmware v2.0.1 are not compatible with RED cameras. The lenses may not be recognized or may not function as expected. The following Sigma lenses are affected:

  • SIGMA 35mm F1.4 DG HSM | Art CANON
  • SIGMA 50mm F1.4 DG HSM | Art CANON
  • SIGMA 85mm F1.4 DG HSM | Art CANON
  • SIGMA 135mm F1.8 DG HSM | Art CANON
  • SIGMA 18-35mm F1.8 DC HSM | Art CANON
  • SIGMA 24-70mm F2.8 DG OS HSM | Art CANON
  • SIGMA 100-400mm F5-6.3 DG OS HSM | Contemporary CANON

 

Found in Firmware Version:

7.0.0

 

Target Firmware Fix:

7.0.4

 

Workaround:

Do not upgrade Sigma lenses to Sigma firmware v2.0.1. For more information, contact Sigma support. 

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