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vivitar 70-210 f3.5 series 1(1984 tokina)

Discussion in 'Open Discussion' started by indysteve, Apr 6, 2013.

  1. indysteve

    indysteve Mu-43 Regular

    37
    Feb 5, 2013
    indianapolis
    any suggestions on settings for max sharpness and IQ?
     
  2. vm666

    vm666 Mu-43 Regular

    132
    Jan 19, 2013
    Paris
    According to an old test from "Chasseurs d'Images":
    • In the centre, sharpness is good at f/3.9 then very good at 70 mm. At 135-200 mm, it is first medium then good.
    • In the corners, it stays one step below, from good to medium, at f/5.6 or more.
    • Vignetting is noticeable at f/3.5 then negligible at f/5.6 or more.
    • Distortion is rather marked (strong?) at 210 mm.
    (I hope my translation is not too broken)
    They gave two stars for the IQ (from 0 to 4)

    I guess that the IQ in the corners and the vignetting will be less important in 4/3 than in 35 mm.
    In summary, step down to f/5.6 for the best IQ.
     
  3. indysteve

    indysteve Mu-43 Regular

    37
    Feb 5, 2013
    indianapolis
    thanks