CraigS Posted December 23, 2022 Share Posted December 23, 2022 Sony FX3 AF Assist and Tamron 28-75 VXD G2 not working. All other Auto Focus functions work. With AF Assist and AF-C enabled in FX3 the Tamron lens focus ring does not override the camera AF function. Should it work with this lens? Is this a known incompatibility? Is there a known fix? FX3 is on firmware 2.00. Might there be a Tamron lens firmware issue? Do others with this combination have AF Assist working with this lens? If so can you provide details on testing and confirming it that I might follow. I'll note that the lens button also seems to perform no function yet I thought the default would be as an AF/MF switch. I'd need to check their Tamron Lens Utility for that but I would love to know if this is a known issue with a known solution. 1 Link to comment Share on other sites More sharing options...
alisterchapman Posted December 27, 2022 Share Posted December 27, 2022 My understanding is that AF Assist is only guaranteed to work with Sony lenses 1 Link to comment Share on other sites More sharing options...
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