Mid point of Lens distance markers

Discussion in 'Minox' started by MTC Photography, Nov 12, 2020.

  1. >EXAMPLE 1 MINOX IIIS, MIDPOINT OF 0.2M 0.6M= 0.3M
    >
    > 2*(.2*.6)/(.2+.6);
    0.3000000000


    >EXAMPLE 2 MINOX IIIS;
    MIDPOINT OF 0.2M 0.3M
    D3 = 2*D1*D2/(D1+D2);
    >
    > 2*0.2*0.3/(0.2+0.3)=0.24
    0.2400000000
    > CORRECT;

    >
    > EXAMPLE 3 MINOX IIIS, MIDPOINT 0.2M 0.6M
    2*0.2*0.6/(0.2+0.6)=

    >
    >
    >
    0.2400000000
     
    Last edited: Nov 12, 2020
  2. > EXAMPLE MID POINT BETWEEN 0.2M INFINITY=0.4M
    >
    > 99999*(2*.2)/(.2+99999);
    0.3999992000
     
  3. MID POINT OF P1, P2

    =2*P1*P2/(P1+P2)

    THIS FORMULAR APPLIES TO ANY LENS(MINOX LENS, LEICA LENS, CANON LENS, NIKON LENS etc etc)
     

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