QuestionMark
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I have two Tamron lenses. 24-70 f2.8 and 70-200 f2.8. I was not convinced the 24-70 was focusing as well as it should be and followed some fine tuning instructions which resulted in a -5 adjustment and better focusing! All good.
But the other day I used the 70-200 and noticed the images we're not as sharp as they should be. When I checked the data, the -5 setting was being applied to this lens as well? I checked the manual and it seems that each lens (up to 20 max) can be given its own fine tuning settings or if none are specified, the default is applied (which I have set at 0) - all this only applying if AF fine-tune is switched on of course.
If I set up the 24-70 correctly, then swap to the 70-200, the AF fine tuning still shows the 24-70 and gives no option to set up the 70-200. If I go ahead and delete the 24-70 settings and then try to set fine tuning for the current lens, only then does it show me the 70-200. Swapping back is the same in reverse.
So it seems that my camera is not detecting the two Tamrons as different lenses? Is this possible - I thought each lens had a unique ID so that even two lenses of the same type and make would even be considered as different lenses as both could require different fine-tune settings?
Can anyone shed any light on why this might be and how to resolve it? Obviously I can just disable fine tuning when using the 70-200, but only if I remember!!!
Any help appreciated.
Mark
But the other day I used the 70-200 and noticed the images we're not as sharp as they should be. When I checked the data, the -5 setting was being applied to this lens as well? I checked the manual and it seems that each lens (up to 20 max) can be given its own fine tuning settings or if none are specified, the default is applied (which I have set at 0) - all this only applying if AF fine-tune is switched on of course.
If I set up the 24-70 correctly, then swap to the 70-200, the AF fine tuning still shows the 24-70 and gives no option to set up the 70-200. If I go ahead and delete the 24-70 settings and then try to set fine tuning for the current lens, only then does it show me the 70-200. Swapping back is the same in reverse.
So it seems that my camera is not detecting the two Tamrons as different lenses? Is this possible - I thought each lens had a unique ID so that even two lenses of the same type and make would even be considered as different lenses as both could require different fine-tune settings?
Can anyone shed any light on why this might be and how to resolve it? Obviously I can just disable fine tuning when using the 70-200, but only if I remember!!!
Any help appreciated.
Mark