STEELSRING Nikon-F to GFX Auto Focus Adapter Firmware 1.03 Released

Steelsring released firmware 1.03 for the STEELSRING NK-F to GFX Auto Focus Adapter. You can get the new firmware for Windows Here and for Mac Here.


1) Bug fixes, improve Tamron and Sigma F-mount lens compatiability
2) Improve AF lock accuracy

For Mac OS 10.7.5+ users only:

You have to disable Gatekeepr before start firmware updater, and remeber to enable it again when it’s done.
To disable it: sudo spctl –master-disable
To enable it: sudo spctl –master-enable
Please refer to for more d

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