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New Contributor
Posts: 3
Registered: ‎08-12-2018

Tokina 28-70mm f/2.8 ATX Pro Lens

I use an older Tokina 28-70mm f/2.8 ATX Pro (not the SV model) which I love.  However, the camera's EXIF data recognizes this lens as a Canon 28-70mm f/3.5-5.6.  How can I change the EXIF to read the correct lens or to read no lens at all rather than the incorrect model?

Esteemed Contributor
Posts: 4,675
Registered: ‎02-17-2016

Re: Tokina 28-70mm f/2.8 ATX Pro Lens

Use ExifTool. There is no way to do it in the camera.

VIP
Posts: 13,855
Registered: ‎12-07-2012

Re: Tokina 28-70mm f/2.8 ATX Pro Lens

Why? It doesn't matter.  DPP4 won't correct for it and LR lets you select which lens correction you want.

EB
EOS 1DX and 1D Mk IV and several lenses!
VIP
Posts: 11,502
Registered: ‎08-13-2015

Re: Tokina 28-70mm f/2.8 ATX Pro Lens


@ebiggs1 wrote:

Why? It doesn't matter.  DPP4 won't correct for it and LR lets you select which lens correction you want.


Yup, you’re right.  AND.  Does not LR allow you to overwrite the EXIF data, too?

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"Doctor told me to get out and walk, so I bought a Canon."
Esteemed Contributor
Posts: 3,253
Registered: ‎11-19-2017

Re: Tokina 28-70mm f/2.8 ATX Pro Lens

RPCrowe,

If you want support for that lens, you're going to have to pick a 3rd party program for post processing and get them to add it.

 

Its not supported in LR or Camera RAW.  Not supported in PhotoLab (DxO).  Only the "SV" model is supported in Affinity Pro

 

I sent you a PM with some links.

~Rick
Bay Area - CA
~6D2(v1.1.0) ~Many Lenses ~DxO PhotoLab Elite ~Windows10 Pro ~EVGA RTX 2080 FTW3 Ultra ~Pixma Pro-100 ~ImageClass MF644Cdw ~LBP622dw
New Contributor
Posts: 3
Registered: ‎08-12-2018

Re: Tokina 28-70mm f/2.8 ATX Pro Lens

I am not looking for support.  It is just a Pita every time I post an image on this site and the wrong lens pops up,,,

VIP
Posts: 11,502
Registered: ‎08-13-2015

Re: Tokina 28-70mm f/2.8 ATX Pro Lens


@shadowsports wrote:

RPCrowe,

If you want support for that lens, you're going to have to pick a 3rd party program for post processing and get them to add it.

 

Its not supported in LR or Camera RAW.  Not supported in PhotoLab (DxO).  Only the "SV" model is supported in Affinity Pro

 

I sent you a PM with some links.


Perhaps not.  I would not know.  But, I do know that LR allows you to build your own correction profile.

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"Doctor told me to get out and walk, so I bought a Canon."
Honored Contributor
Posts: 5,558
Registered: ‎06-25-2014

Re: Tokina 28-70mm f/2.8 ATX Pro Lens


@RPCrowe wrote:

I use an older Tokina 28-70mm f/2.8 ATX Pro (not the SV model) which I love.  However, the camera's EXIF data recognizes this lens as a Canon 28-70mm f/3.5-5.6.  How can I change the EXIF to read the correct lens or to read no lens at all rather than the incorrect model?


The mis-identification of the lens is clearly a bug, but is it the fault of the camera or of the photo editor you're using? To find that out, you need to try it on more than one camera and with more than one photo editor. If it's in the camera, Canon should correct it in the next firmware release (and would, I think, want to do so). If it's in the editor, that should be fixable as well, assuming that the authors of the software care enough.

 

A third possibility, much less likely than the other two, is that the lens has successfully fooled the camera into thinking that it's really a Canon lens. I suppose Canon would want to fix that too, but it might be more of an undertaking. If it required a change to how their lens reports itself, older copies of that lens would presumably be mis-identified in the future.

Bob
Philadelphia, Pennsylvania USA
VIP
Posts: 11,502
Registered: ‎08-13-2015

Re: Tokina 28-70mm f/2.8 ATX Pro Lens


@RobertTheFat wrote:

@RPCrowe wrote:

I use an older Tokina 28-70mm f/2.8 ATX Pro (not the SV model) which I love.  However, the camera's EXIF data recognizes this lens as a Canon 28-70mm f/3.5-5.6.  How can I change the EXIF to read the correct lens or to read no lens at all rather than the incorrect model?


The mis-identification of the lens is clearly a bug, but is it the fault of the camera or of the photo editor you're using? To find that out, you need to try it on more than one camera and with more than one photo editor. If it's in the camera, Canon should correct it in the next firmware release (and would, I think, want to do so). If it's in the editor, that should be fixable as well, assuming that the authors of the software care enough.

 

A third possibility, much less likely than the other two, is that the lens has successfully fooled the camera into thinking that it's really a Canon lens. I suppose Canon would want to fix that too, but it might be more of an undertaking. If it required a change to how their lens reports itself, older copies of that lens would presumably be mis-identified in the future.


I think your third possibility is far and way the most likely explanation.  The lens is fooling the camera.  The camera does not contain a database of every lens ever made.  The lens identifies itself to the camera body.

I’d bet if you tried the lens on a different body, you would get the same result.

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"Doctor told me to get out and walk, so I bought a Canon."
VIP
Posts: 13,855
Registered: ‎12-07-2012

Re: Tokina 28-70mm f/2.8 ATX Pro Lens

"A third possibility, much less likely than the other two, ..."

 

Glad you opined, "much less likely", Robert because that is nonsense.

EB
EOS 1DX and 1D Mk IV and several lenses!
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