Minox GTE/GTX/GTS DOF

Discussion in 'Minox' started by mtc photography, Jan 8, 1999.

  1. Minox GTE/GTX/GTS/35ML has a standard circle of confusion of 1/30 mm.
    .

    Hyperfocal distances
    f stop hyperfocal distance
    F2.8 15M
    F4 10.4M
    F5.6 7.5M
    F8 4.6M
    F11 3.8M
    F16 2.7M
     
  2. Minox GTE/GTX/GTS/35ML has a standard circle of confusion of 1/30 mm.
    The hyperfocal distances are 15m @ F2.8; 10.4M @ F4; 7.5M @ F5.6; 4.6M @ F8; 3.8m at F11 and 2.7M at F16.
     
  3. With a coc = 1/30mm for Minotar/Minoxar lens, an 8x10" enlargment for it will look sharp at 10" distance.
    You may double the enlargement size to 16x 20" and view it at twice the distance, ie at 20" away.
     
  4. Tim,
    CIRCLE OF CONFUSION
    Image of a point source is only pin sharp at the exact image plane, deviate from here, the image will become blurry, and its a circle called "circle of confusion". The maximum diameter of circle of confusion is chosen :
    1. for 35mm camera: 1/30 mm
    2. for 8x11 camera 1/60 to 1/100mm
     
  5. I read in the user books of Minox 35 EL, GL and GT that the scale of
    DOF was calculated for a COC of 1/36 mm, which garanteed sharper
    results than with a COC of 1/30 mm. This is the sign of high quality
    wish from the manufacturer.
     

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