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Fuji lens no longer auto focuses on X-T3
Mar 13, 2022 11:33:26   #
f8lee Loc: New Mexico
 
Okay, this is just weird.

Yesterday I discovered, somewhat to my chagrin, that my Fuji 16MM f1.4 lens will not auto focus on the X-T3 body with which it has worked for years in either single or continuous focus mode. It does work normally on the X-T4, however.

Yes, I checked the contacts are clean.
Yes, other Fuji lenses (both prime and zoom) that I own work fine on the X-T3, and
Yes, I have the latest firmware updates on both the bodies and the lens (the latest update for the 16MM is circa 2016)

So the question is - can anyone think of what might be causeing this odd situation? I plan to call Fuji support tomorrow, but thought perhaps another member here has experienced someething similar.

TIA

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Mar 13, 2022 12:30:41   #
lamiaceae Loc: San Luis Obispo County, CA
 
f8lee wrote:
Okay, this is just weird.

Yesterday I discovered, somewhat to my chagrin, that my Fuji 16MM f1.4 lens will not auto focus on the X-T3 body with which it has worked for years in either single or continuous focus mode. It does work normally on the X-T4, however.

Yes, I checked the contacts are clean.
Yes, other Fuji lenses (both prime and zoom) that I own work fine on the X-T3, and
Yes, I have the latest firmware updates on both the bodies and the lens (the latest update for the 16MM is circa 2016)

So the question is - can anyone think of what might be causeing this odd situation? I plan to call Fuji support tomorrow, but thought perhaps another member here has experienced someething similar.

TIA
Okay, this is just weird. br br Yesterday I disco... (show quote)


Did you turn off the AF in a menu somewhere somehow? Is there a switch on the lens? Some of my newer Pentax products have a AF switch on both body and lens that must be on for AF. There are also more obscure menu settings that can affect AF. My only Fujifilm camera thus far is a X-100T. The X-T* are top of the line MILCs.

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Mar 13, 2022 15:16:39   #
f8lee Loc: New Mexico
 
lamiaceae wrote:
Did you turn off the AF in a menu somewhere somehow? Is there a switch on the lens? Some of my newer Pentax products have a AF switch on both body and lens that must be on for AF. There are also more obscure menu settings that can affect AF. My only Fujifilm camera thus far is a X-100T. The X-T* are top of the line MILCs.


Well had I done that then AF wouldn’t work with all my other lenses, so no.

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Mar 13, 2022 20:17:41   #
lamiaceae Loc: San Luis Obispo County, CA
 
f8lee wrote:
Well had I done that then AF wouldn’t work with all my other lenses, so no.


OK, true enough. But I did not recall you saying you had more lenses. I was thinking of asking if you had tried other lenses if you had them. Hope you figure it out.

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Mar 13, 2022 20:19:36   #
f8lee Loc: New Mexico
 
lamiaceae wrote:
OK, true enough. But I did not recall you saying you had more lenses. I was thinking of asking if you had tried other lenses if you had them. Hope you figure it out.


I appreciate that - it is why I stated that in point #2 in my original post

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Mar 14, 2022 11:27:20   #
f8lee Loc: New Mexico
 
Aha! Problem solved - though it brings up a different question.

Turns out this was user error - I inadvertently had pulled the focus ring on the 16MM lens back, disengaging the clutch that allows auto-focus (supposedly) - so that's on me.

But what is particularly curious (and the techs at Fuji hadn't known) is that, despite the ring being set back to manual focus position, the X-T4 still does auto focus with it!

'Splain me that one!

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