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>I have just received a used Nikkor F 24mm f/2 
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>looking at it, I noticed a red
>point within the DOF scale. Between the orange (f8) and green (f4) lines,
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>What does this point mean? 

that is the Infra-Red focus point. IR has a different index of 
refraction, so it focuses on a slightly different plane. focus 
normally, note the focus distance on the scale and then turn that 
point to align with your red dot and your IR shot should be in 
focus.

hope that helps,
manny.
******************************************
               Manny Crisan
         Perth, Western Australia
              ICQ#: 11452791

      Last night I lay in bed  looking
       up at the stars in the sky and
            I thought to myself,
      "Where the heck is the ceiling?!"
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