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Firmware for Sony Model F051
Model Product Mount Latest Version Last Update Date
F051 24mm F/2.8 Di III OSD M1:2 Sony Ver.3 2022.03.28

This update improves the following issue.

The focus mode may switch from AF to MF during video recording with the SONY a7IV.

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This update improves the following issue which may rarely occur.

If the viewfinder (monitor) image gets severely out of focus, the AF operation stops in the middle and the focus indicator lights up even though it is not in focus.