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658Re: Fisheye Camera

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  • Garry Stasiuk
    Nov 1, 2005
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      > Camera's that do not will state this information as
      > the "focal length multiplier." This is the
      > magnification that occurs whenever the sensor is not
      > 35mm. Say you have a 20mm lens and you put it on the
      > Canon 20D, you'll end up with the equivelant of a 32mm
      > lens. Nikon has developed "DX" lenses that corrects
      > this magnification issue.

      Actually "DX" (Sigma calls them "DC" Tamron Di) lenses don't correct
      the magnification factor and the the DX lenses do not give full
      coverage on a full frame camera.

      These "digital" lenses (all manufacturers make them, only fully cover
      the smaller APC sensor) so the lenses can be a bit smaller and
      lighter and maybe with faster optics...)

      To Quote DPreview,

      "The AF-S DX VR 18-200mm F3.5-5.6G IF-ED Zoom-Nikkor (try saying that
      three times quickly) provides an equivelant field of view range of 27
      to 300 mm on a DX format digital SLR (such as the newly announced
      D200). "

      So, the digital camera you want is the new Canon 5 D with full 35 mm
      frame at around $3000 grand and a nice 8 mm circular fish eye (sigma
      just announces a new one...)

      Mo Eb , Garry
      *** *** http://home.comcast.net/~garrystasiuk/
      * * Garry T. Stasiuk <GarryStasiuk@...>

      o "Learn from yesterday, live for today, hope for tomorrow. The
      important thing is to not stop questioning." --Albert Einstein
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