Nikon 85mm 1.8D - Can't get autofocus to work

Started Dec 23, 2013 | Questions
Alandb
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Nikon 85mm 1.8D - Can't get autofocus to work
Dec 23, 2013

I just bought a used Nikon 85mm 1.8D. I Have a Nikon D7000. I can't figure out how to get the autofocus to work. I'm sure it is just a setting I am not doing properly but I can't figure it out. Please advise.

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Nikon D7000
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starman1969
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Re: Nikon 85mm 1.8D - Can't get autofocus to work
In reply to Alandb, Dec 23, 2013

It's a non G lens so it will have an aperture ring. As far as making sure the aperture is locked to f16 on the lens, then making sure the AF switch on the body is in the on position I can't think what else it might be.

Take the lens off the camera, then put it back on again & make sure the contacts are clean.

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Alandb
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Re: Nikon 85mm 1.8D - Can't get autofocus to work
In reply to starman1969, Dec 23, 2013

I believe I did all that and it still doesn't work.

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PSCL1
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Re: Nikon 85mm 1.8D - Can't get autofocus to work
In reply to Alandb, Dec 23, 2013

If it's bought used, return the item.  If it's bought new, return the item.

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Kvenna
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Re: Nikon 85mm 1.8D - Can't get autofocus to work
In reply to Alandb, Dec 23, 2013

It seems rather too obvious to need pointing out, but have you set the ring on the lens to A?

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unknown member
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Re: Nikon 85mm 1.8D - Can't get autofocus to work
In reply to Alandb, Dec 23, 2013

I'm sure it is just a setting I am not doing properly but I can't figure it out. Please advise.

Check if You have Programmed a Button for AF-ON.
If so, the Camera will only Focus when the corresponding Button is pushing.

Read the Nikon D7000 Manual for this...

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Re: Nikon 85mm 1.8D - Can't get autofocus to work
In reply to starman1969, Dec 23, 2013

As far as making sure the aperture is locked to f16 on the lens, then making sure the...

Aperture-Switch on the Lens is on the orange Position.

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Alandb
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Re: Nikon 85mm 1.8D - Can't get autofocus to work
In reply to Carsten Pauer 2, Dec 23, 2013

Carsten, thank you. I never would have figured that out.

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Windancer
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Re: Nikon 85mm 1.8D - Can't get autofocus to work
In reply to Carsten Pauer 2, Dec 23, 2013

Carsten Pauer 2 wrote:

Check if You have Programmed a Button for AF-ON.
If so, the Camera will only Focus when the corresponding Button is pushing.

Well done Cartsten because I don't do this I personally would have never thought of this

Terry

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Re: Nikon 85mm 1.8D - Can't get autofocus to work
In reply to Alandb, Dec 23, 2013

Carsten, thank you. I never would have figured that out.

Cool, i have save some Money for You.

Well done Cartsten because I don't do this I personally would have never thought of this.

That was only to guess right.

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Leonard Migliore
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But AF-ON is global
In reply to Alandb, Dec 23, 2013

Alandb wrote:

Carsten, thank you. I never would have figured that out.

If you have set the focus to AF-ON, then none of your lenses would autofocus with the shutter button. I was under the impression that only the 85 wasn't autofocusing.

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Alandb
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Re: But AF-ON is global
In reply to Leonard Migliore, Dec 23, 2013

Leonard, that is an interesting question. I believe you are mostly correct. I forgot that I recently changed to back button focusing. I just put on my 16-85mm and it seems that it will take a shot, but not always, but it won't autofocus. I watched to see whether the lens moved without pushing the backbutton focus and it did not. It might have fired without pressing the backbutton if it was already in focus, but I am not sure. I thank everybody for helping me out with this. Everything is a learning experience.

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Leonard Migliore
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Re: But AF-ON is global
In reply to Alandb, Dec 24, 2013

Alandb wrote:

Leonard, that is an interesting question. I believe you are mostly correct. I forgot that I recently changed to back button focusing. I just put on my 16-85mm and it seems that it will take a shot, but not always, but it won't autofocus. I watched to see whether the lens moved without pushing the backbutton focus and it did not. It might have fired without pressing the backbutton if it was already in focus, but I am not sure. I thank everybody for helping me out with this. Everything is a learning experience.

When I changed to back button focusing I got a whole bunch of out-of-focus pictures. Usually with back button focusing you set AF-C so the camera will fire whether it's in focus or not.

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Leonard Migliore

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Alandb
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Re: But AF-ON is global
In reply to Leonard Migliore, Dec 24, 2013

You are correct but I have my camera set for AF-S.

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Leonard Migliore
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Re: But AF-ON is global
In reply to Alandb, Dec 24, 2013

Alandb wrote:

You are correct but I have my camera set for AF-S.

Did you change the AF-S priority selection to "release"? The default selection is "focus", meaning the camera will only take pictures when the camera is in focus. AF-C default is "release", meaning the camera will take a picture whenever the shutter is pressed.

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Leonard Migliore

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Old Photo Dog
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Thanks for this post...
In reply to Leonard Migliore, 9 months ago

I managed to make all of the mistakes mentioned above, except I did have AF-ON. This saved me a lot of debugging time!

Thanks again.

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