Conversion of 35mm focal lengths to Digital?

Discussion in 'Beyond the Basics' started by BernieSC, Jan 19, 2005.

  1. BernieSC

    BernieSC TPF Noob!

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    I am sure if I searched I would find this, but I thought this time I would be lazy. Does anyone know somewhere on this forum or the web that has a conversion chart, how a 35mm focal length would convert to digital format?


    Thanks in advance.
     
  2. Digital Matt

    Digital Matt alter ego: Analog Matt

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    Multiplay by 1.6 for aps-c sized digital slrs. Canon's 1dMK II is a 1.3 crop.
     
  3. kfoster

    kfoster TPF Noob!

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    Nikon uses a a CCD chip that is 2/3 the size of a 35mm negative. Therefore, if you muliply 1.5x the focal length of the lens you will get the adjusted focal length.

    Eample: 18-70mm lens becomes 27-105mm on Nikon digital camera

    Canon uses 1.6x for everything but the high end cameras. The 1Ds and 1Ds Mark II uses a full frame sensor. The 1D Mark II use the 1.3. I believe the older D30 and D60 both had the 1.6x sensor like the 10D, 20D and digital rebel.
     

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