auto fine tuning

Started 5 months ago | Discussions thread
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larrywilson
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auto fine tuning
5 months ago

I hate to ask probably a simple question that I think I might have the answer, but want to confirm my thought.

Can a manual focus lens be auto focus fine tuned so that the dot appears when the lens is in focus if the lens is not a cpu lens?  I just bought a used Zeiss 100mm lens that has no contacts with the camera and is back focusing so that the dot does not match when in focus.  I have to turn the focusing ring slightly until the left arrow lights up and that is about where the lens is in focus.  Of course the lousy focusing screens are a poor tool for manual focus ugh!!!!

I can focus in live view by magnifying the image, then taking an image and it is in beautiful focus.  Then if I switch off the live view and look in the viewfinder the left arrow is lit up.

I guess I don't want the lens if it is back focusing and I can not adjust it.

Larry

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