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Re: [PanoToolsNG] Kenko fisheye lens...

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  • Ken Warner
    Nice house! Crummy lens. I wonder if the new ones are any better? Still, with the magic of Photoshop, it might turn into a good set of images. Soft focus
    Message 1 of 6 , Jan 12, 2009
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      Nice house! Crummy lens. I wonder if the new ones
      are any better? Still, with the magic of Photoshop,
      it might turn into a good set of images.

      Soft focus like that can be a nice thing sometimes...

      Uri Cogan wrote:
      > Ken Warner wrote:
      >
      >
      >>Does anyone know anything about Kenko fisheye lenses?
      >>It's an old lens. Manual focus, manual apeture 5.6-22.0.
      >>
      >
      >
      >
      >
      >
      >
      > I actually have one, I bought it about 40 years ago, with a Nikon adapter.
      >
      > The lens screws like a filter over an old Nikon "normal" 50mm lens (52mm
      > thread) and with a "magnification" of 0.16 it converts its focal length
      > to 8mm.
      >
      > It has an aperture ring but no focus. The "normal" lens must be wide
      > open, at F1.4 or F2.0, and its focus set to infinity. It will yield a
      > round fisheye image on full size sensors, but will chop the sides off on
      > my D80 (very similar to the Sigma 8mm).
      >
      > So I dug it out of my junk pile, mounted it, with the old 50mm lens on
      > the D80, and took it out for a 4-exposure hand-held pano shot outside my
      > studio. Processed all 4 shots in PTGui with no trouble, and created the
      > pano in Pano Converter. The lens is very soft with poor focus at the
      > edges, and has tons of CA and puple fringing. I imagine it's images
      > could be improved a bit in Photoshop, but I decided to create a panorama
      > using uncorrected images. The fact it is a foggy day did not help...
      >
      > See that panorama (for the next day or so) at:
      >
      > http://www.uricogan.com/kenko
      >
      > Uri
      >
      >
      > [Non-text portions of this message have been removed]
      >
      >
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