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Re: I wonder if Samyang will every have a micro 4/3 version of their 8mm lens.

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  • Hans
    ... He He Looks like I have to tell dpreview once more that their data is incorrect. http://www.dpreview.com/reviews/specs/Olympus/oly_e620.asp Its not the
    Message 1 of 16 , Jan 21, 2010
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      --- In PanoToolsNG@yahoogroups.com, Erik Krause <erik.krause@...> wrote:
      >
      > Am 20.01.2010 06:30, schrieb Hans:
      >
      > > But I would guess that the Samyang 8mm will give you around 85x120 on 4/3
      > > at 15,8 mm you have 104 degrees
      >
      > Well, you are almost right and my previous estimate was too low...
      >
      > According to the mapping formula Michel Thoby found on
      > http://michel.thoby.free.fr/SAMYANG/Early%20test%20report.html
      > the angle is 3*atan(R/26.1) where R is the radius.
      >
      > According to http://en.wikipedia.org/wiki/Lens_mount 4/3 is 17.3mm x
      > 12.98mm. This gives 110° landscape and 84° Portrait.

      He He
      Looks like I have to tell dpreview once more that their data is incorrect.
      http://www.dpreview.com/reviews/specs/Olympus/oly_e620.asp
      Its not the only one 450 and 600 says the same.

      Last time I corrected them was with the bracketing for the Canon 7D.

      Hans

      >
      > --
      > Erik Krause
      > http://www.erik-krause.de
      >
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