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AF Fine tune with 3rd party lenses

johngie

Mold, UK
300 posts

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johngie Registered since 07th Jul 2007
Sat 15-May-10 01:27 PM

A discussion on DP Review (and which I have confirmed) reveals that if you have more than one G type Tokina ATX Pro lens for which you have set an AF correction, the camera will only recognise one of them. I have a Tokina 50-135 for which I have set a correction of -2. If I demount that and mount my Tokina 12-24, it still shows on the camera as a 50-135 in the Fine Tune table and applies the same correction (-2 in this case). The EXIF information is correct though (i.e. it correctly identifies the lenses).

The only third party lenses I have are the two Tokinas so cannot check whether the same applies to Sigma and Tamron.

If no AF correction is applied, then there's no problem but otherwise one or more lenses will have the wrong correction applied.

Can anyone check whether this applies to other 3rd party lenses?

John Gruffydd
Mold, Wales, UK
D300, D200, OM1, OM2n, Bronica ETRSi, Lumix LX5

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