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Firmware upgrade for non Sony lenses


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Thank you for agreeing to accept me on this forum.
I have a Sony A7 IV and a Sigma 105mm macro lens (DG DN Art).
I'm wondering how to update the firmware for this Sigma lens...so far I haven't found anything conclusive.

Thank you for your help,

Good day to all,


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  • 3 months later...

Sigma used to (may still do) offer a USB dock for their lenses for upgrading firmware. I had one for EF and one for F lenses, but I am not using Sigma at the moment. I don't know if they have a E dock.

You just mount the lens on the dock, plug the USB into your computer and update that way.

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The Sigma 105mm macro lens DG DN Art is on Ver.02 2023.01.26. Though I haven't upgraded that lens, I have upgraded a couple of other recent Sigma lenses and it is quite simple using the Sony camera and detailed on the Sigma website. Do a quick Google search and you will find the information you seek. Link: https://www.sigma-global.com/en/lenses/a020_105_28/?tab=support&local=firmware

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  • 1 month later...

Similar to JCCabin, I updated the firmware on my Sigma 35mm f/2 lens by attaching it to a Sony alpha series body and following the instructions on Sigma's website. Very slick; no fiddling with docking stations or USB ports on the lens.

Edited by Monochrome
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