Any DIY AI Conversion People Here?

Discussion in 'Beyond the Basics' started by eminart, Mar 9, 2008.

  1. eminart

    eminart TPF Noob!

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    Alright, just got my D80 and I have a couple of old lenses that are non-AI. One, the 85mm, I thought was AI, since I'm a total newb and don't know much. Actually put it on my camera and took a few photos. Luckily, nothing was damaged.

    Anyway, I've been reading about AI conversions. I have the tools and the ability to do it myself with no problems, but I'm a little confused on what I'm trying to accomplish. The only thing I can see that gets in the way of mounting a non-ai lense on my D80 is the little switch-thingy (I forget what it's called) that's at about the 8 o'clock position if you're facing the body. But, all the sites I see show the aperture ring being filed/ground/milled from around the f-stops down to some point on the side that isn't clear.

    Does anybody know exactly what part(s) of the ring should be removed?
     
  2. Socrates

    Socrates TPF Noob!

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    You've just confused the daylights out of me. Is one of these the lens that you mean?
    http://www.nikonusa.com/Find-Your-Nikon/Product/Camera-Lenses/1931/AF NIKKOR 85mm f/1.8D.html
    http://www.nikonusa.com/Find-Your-Nikon/Product/Camera-Lenses/1933/AF NIKKOR 85mm f/1.4D IF.html
     
  3. eminart

    eminart TPF Noob!

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  4. Mike_E

    Mike_E No longer a newbie, moving up!

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    What you are trying to accomplish is to get the notch where the finder will fit just so and then your camera will know what the aperture is set to.

    Be careful not to get filings down into the lens.

    Let us know how it goes, will you? I have bid on a couple of lenses just to give it a try but unsuccessfully thus far.
     
  5. eminart

    eminart TPF Noob!

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    Alright, excuse my ignorance, but where is this "finder"? Is it the little switch that sits just outside the lens opening on the body at about 8 0'clock? I don't know what it could be.

    I'll remove the aperture ring before doing any work to it so I won't get filings in the lens or break anything.

    I'll let you know how it goes as soon as I can get a handle on what it is I'm doing. :lol:
     
  6. Mike_E

    Mike_E No longer a newbie, moving up!

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    It's that small piece of steel that gets bent if you don't have the notch cut out of the aperture ring. It moves around the lens opening and is spring loaded to snap back into position when you take the lens off (which also keeps it tight to the edge of the notch).
     
  7. eminart

    eminart TPF Noob!

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    Ok, I think this is where my confusion was coming in. Unless, I'm grossly mistaken, the D80 does not have that piece.
     
  8. Mike_E

    Mike_E No longer a newbie, moving up!

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  9. Socrates

    Socrates TPF Noob!

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