D5500 firmware update aparently affected a Sigma lens focus ability

Started Jan 28, 2016 | Discussions thread
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John Schulte Regular Member • Posts: 470
D5500 firmware update aparently affected a Sigma lens focus ability

All,

I moved from D750 to D5500. With new commitment from Nikon towards DX, decided to move back. Smaller all around.
When D5500 new, of course took test shots with all my lenses as I know there is no micro adj on D5500.
All worked perfectly more or less- maybe the focus on some not dead on, but within reason.
Ok so far.
This morning I updated firmware in camera to 1.01 the lens firmware remains at 2.009
Now, all Nikon lenses work but the one Sigma lens I have will not AF at all any longer. (Sigma EX 85 f1.4 DG HSM). Yup, the AF/M switch is in the AF position and tried going back and forth and remounting the lens.

I kept the Sigma from the FF as it is a very sweet lens. Razor sharp.

It seems the firmware cut out the ability of the Sigma to autofocus. On the info screen, the AF selector and AF/MF are greyed out.It is now a MF focus lens only- turning the focus ring does give in-focus indication so can be used that way.

Anybody else seen this? Perhaps I missed something but don't think so  I looked back to pre-firmware change and see that I used the Sigma 85- worked AF no problem. Now it does not.

It can be one of two possibilities; 1- lens is suddenly not working, or 2- firmware update knocked it out.

I need to try on a friends Nikon to test #1, but strongly suspect #2.

anybody else experience anything similar?

cheers,

John

 John Schulte's gear list:John Schulte's gear list
Nikon D7200 Nikon AF-S Micro-Nikkor 105mm F2.8G IF-ED VR Nikon AF-S DX Nikkor 18-140mm F3.5-5.6G ED VR
Nikon D5500 Nikon D750
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