AF Fine Tune Won't Recognize Lenses
This may be a strange problem.
I have both the Tokina 11-16 f/2.8 and the Tamron 17-50 f/2.8.
The Tokina needs no AF Fine Tune adjustment
The Tamron needs +10 adjustment.
I know how to do this and with AF Adjust turned on it tells me that the 17-50 f/2.8 has +10. Very Good so far.
Now when I mount the Tokina 11-16, the AF Adjust tells me that it is giving +10 adjustment. It won't recognize this as a different lens. It should be showing me a value of -- because I haven't entered and saved any value for this lens yet. If I change the +10 value, it becomes the saved value for the Tamron, not a new lens.
If I delete the Tamron adjustment and lens number then mount the Tokina it is recognized as 11-16 f/2.8 and I can save an adjustment of 0 for it.
Now if I mount the Tamrom, it tells me that the adjustment for this lens is 0 and won't let me input a separate adjustment.
In a nutshell-- the camera will recognize EITHER the Tokina or the Tamron in the AF Adjust module, but not BOTH.
I mounted a Sigma 70mm and it was recognized correctly and I was able to enter an adjustment amount which it saved under a new lens number.
If anyone has a D7000 and both the Tamron and Tokina lenses mentioned, could you let me know if you have this problem or any tips to fix it?
#1. "RE: AF Fine Tune Won't Recognize Lenses" | In response to Reply # 0dm1dave Nikonian since 12th Sep 2006Mon 12-Dec-11 09:41 PM
I think this is a known issue with some 3rd party lenses.
Often the manufactures will clone a Nikon chip and use the same chip in several lenses. There is some identifier in the chip that the camera uses for assigning AF fine tune settings.
You can probably contact Tamron and see if they can rechip the lens for you.
#2. "RE: AF Fine Tune Won't Recognize Lenses" | In response to Reply # 0
#3. "RE: AF Fine Tune Won't Recognize Lenses" | In response to Reply # 2jckingca Registered since 16th Dec 2010Mon 12-Dec-11 11:48 PM
Dave, Bill, thanks for the replies.
Bill, thanks for the links to earlier discussions. My forum search obviously missed both these threads. I thought it was possibly a problem specific to the D7000 but I see that it's a more widespread occurrence.
The obvious workaround is to *always* remember to turn off AF Adjust when mounting the Tokina which needs no adjustment. Inconvenient but effective.