Nikon (D750) AF Fine Tune woes with 3rd party lenses

Turbo-G

Turbo-G

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Grant
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Evening all,
I picked up a Spyder Lenscal today, to allow me to easily check and fine tune the AF on my D750, when paired with my Tamron 24-70 2.8, and 70-200 2.8, as I suspect I may have a hint of front focussing on the 24-70, but something useful for me to own regardless...

One thing that occurred to me though, is that the camera does not seem to be able to differentiate the 70-200 2.8 as a different lens to the 24-70 2.8 on the AF Fine tune menu, which means I can't save a separate adjustment profile, per lens. When I popped on my 35 1.8 Nikkor lens out of curiosity, the camera sure enough told me the correct lens in the AF fine tune menu, as expected.

Looking in Lightroom at my EXIF data, all seems to be OK (e.g. it is correctly showing which lens was used for a given photo), which is good...

Having a quick search online, would suggest this is a known issue with Tamron lenses (and other 3rd parties), something to do with a non-unique lens identifier being used by Tamron: http://forum.nikonrumors.com/discussion/1380/problem-with-tamron-lenses-on-d800

Has anybody else experienced this, using any 3rd party lens on a Nikon body? What did you do, to resolve your focus issues, assuming you had one?

Thanks,
Grant
 
Turbo-G said:
Evening all,
I picked up a Spyder Lenscal today, to allow me to easily check and fine tune the AF on my D750, when paired with my Tamron 24-70 2.8, and 70-200 2.8, as I suspect I may have a hint of front focussing on the 24-70, but something useful for me to own regardless...

One thing that occurred to me though, is that the camera does not seem to be able to differentiate the 70-200 2.8 as a different lens to the 24-70 2.8 on the AF Fine tune menu, which means I can't save a separate adjustment profile, per lens. When I popped on my 35 1.8 Nikkor lens out of curiosity, the camera sure enough told me the correct lens in the AF fine tune menu, as expected.

Looking in Lightroom at my EXIF data, all seems to be OK (e.g. it is correctly showing which lens was used for a given photo), which is good...

Having a quick search online, would suggest this is a known issue with Tamron lenses (and other 3rd parties), something to do with a non-unique lens identifier being used by Tamron: http://forum.nikonrumors.com/discussion/1380/problem-with-tamron-lenses-on-d800

Has anybody else experienced this, using any 3rd party lens on a Nikon body? What did you do, to resolve your focus issues, assuming you had one?

Thanks,
Grant
Click to expand...
I've not got this issue as only have one Tamron and one Sigma so it differentiates this, however I did have a Sigma 85mm briefly and it did differentiate this so maybe it's just an issue with Tamron?

Are all you other lenses fine tuned or are some zero? The reason I ask is that if all your others are fine tuned you could try not setting one for one of the Tamrons and just use the default fine tune to correct this one. The only trouble with the default fine tune is that it effects all lenses that don't have their own fine tune set.
 
I assume you mean, adjust AF for one lens, via default profile, and then save a new lens specific profile for the other lens?

Unsure whether that would solve the issue here, as the camera is aware a lens is attached, it just doesn't differentiate between the two models under the fine tune menu...

I haven't tried it, but if I was to delete the fine tune for the 24-70 and connect the 70-200 first time around, I'm fairly sure the 70-200 identifier would be shown, when the 24-70 is then attached...

Unfortunately these are my only two lenses, discounting my DX gear.
 
This is a known issue with the 24-70 and 70-200 Tamrons for fine tuning
 
Turbo-G said:
I assume you mean, adjust AF for one lens, via default profile, and then save a new lens specific profile for the other lens?

Unsure whether that would solve the issue here, as the camera is aware a lens is attached, it just doesn't differentiate between the two models under the fine tune menu...

I haven't tried it, but if I was to delete the fine tune for the 24-70 and connect the 70-200 first time around, I'm fairly sure the 70-200 identifier would be shown, when the 24-70 is then attached...

Unfortunately these are my only two lenses, discounting my DX gear.
Click to expand...
Good point. I'd had a long day :oops: :$ ;)
 
Thanks, I have pinged an email off to them tonight - will report back if I get a response.

This seems to be a bit of a limitation on these lenses, unless they can resolve via FW updates.

TBH I haven't checked the AF calibration with this lens yet, but it is slightly frustrating knowing that I "can't" AF fine tune this lens separately, to my 24-70mm should I wish to...
 
Trade them in and buy Nikon lens 's then you will have no problem what so ever with individual lens identification
 
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