Sigma 50mm F1.4 DG HSM | Art (Nikon F mount)
firmware v1.01
Sigma · Released Jan 24, 2019 · First seen Jul 5, 2026
v1.01 is not the latest firmware for the Sigma 50mm F1.4 DG HSM / Art (Nikon F mount): the current version is v1.03 (April 7, 2022). Go to v1.03
In short — summary by updatemystuff.com
Fixed intermittent autofocus response when starting from out-of-focus with Nikon Z 7 via FTZ adapter.
- Autofocus intermittence corrected on Nikon Z 7 with FTZ adapter
Written from Sigma's release notes, which are printed in full below.
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What's in this update
When the lens is used in combination with the Nikon “Z 7” and their “Mount Adapter FTZ”, it has corrected the phenomenon whereby the response to the AF operation is intermittent when starting to shoot with the subject completely out of focus.
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