Sigma 24mm F1.4 DG HSM | Art (Sony E-mount)
firmware v02
Sigma · Released Jul 18, 2019 · First seen Jul 5, 2026
v02 is the latest firmware for the Sigma 24mm F1.4 DG HSM / Art (Sony E-mount), released July 18, 2019.
In short — summary by updatemystuff.com
Improved autofocus speed and accuracy, plus fixed AF positioning variation on Sony α9 and α6400.
- Faster autofocus performance
- Better autofocus accuracy with Face Detection enabled
- Corrected AF position inconsistency on Sony α9 and α6400 bodies
Written from Sigma's release notes, which are printed in full below.
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What's in this 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 α9 or Sony α6400, 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.
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