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pany 20... how good ?

Discussion in 'Native Lenses' started by Al., Sep 13, 2010.

  1. Al.

    Al. Mu-43 Veteran

    Jul 3, 2010
    Hull, East Yorkshire, UK
    just a few niggling questions...

    I've read that the pany 20mm 1.7 has lots of barrel disortion and has to be corrected in camera with software, so does that make it a good lens if has to be corrected?

    What about edge sharpness when the software has to stretch the corners and inter polate the pixels, it must have some effect?

    Is a RAW file a RAW file when it has been doctored?

    If the GF1 has this built in software to correct the barrel distortion, when this lens is used on the Oly , does this have the software to correct it?
  2. dulaney22

    dulaney22 Mu-43 Regular

    Aug 18, 2010
    I hope somebody will give a detailed explanation of this. Of course, I am new to the world of more serious photography, but I've been nothing but impressed with the image quality from this lens and have seen these questions(basically unanswered) on several boards. Here are a few uncropped and untouched RAW files from New Orleans. You obviously know more about this than I may ever, but looking at these may answer some questions. I haven't had time to work on them yet in Aperture, but they look good to my eyes pretty much as is. A couple were taken with art filters. The color and sharpness of this lens amaze me.

    <a href="http://www.flickr.com/photos/dulaney22/4984889095/" title="P9112188 by dulaney22, on Flickr">
    Subscribe to see EXIF info for this image (if available)
    "640" height="480" alt="P9112188" /></a>

    <a href="http://www.flickr.com/photos/dulaney22/4984909611/" title="P9112207 by dulaney22, on Flickr">
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    "640" height="480" alt="P9112207" /></a>

    <a href="http://www.flickr.com/photos/dulaney22/4985541770/" title="P9122225 by dulaney22, on Flickr">
    Subscribe to see EXIF info for this image (if available)
    "640" height="480" alt="P9122225" /></a>

    <a href="http://www.flickr.com/photos/dulaney22/4984935093/" title="P9122223 by dulaney22, on Flickr">
    Subscribe to see EXIF info for this image (if available)
    "480" height="640" alt="P9122223" /></a>
    • Like Like x 1
  3. Al.

    Al. Mu-43 Veteran

    Jul 3, 2010
    Hull, East Yorkshire, UK
    looks like the artist in pic 1 has been to work on the wheelie bin in pic 3

    I am not critizising the 20mm 1.7, its my next lens on my shopping list!
  4. Streetshooter

    Streetshooter Administrator Emeritus

    Dec 15, 2009
    Phila, Pa USA
    The lens designers depend on the software designers to correct their issues with lens design.
    So, in LR, PS and a host of other programs, the software corrects for most things like Barrel distortion, Chromatic Aberation etc.
    You can make your own profiles to further correct these things but I haven't had any real issues so far.

    In the old, old film days, these things had to be corrected in the lens design because it would show in the negative. Thus, the high cost for a great lens like the Leica's.
    I'm sure the Leica lens guys cringe at the stuff that's being throw at us.
    So, yes, the aberrations and stuff is generally corrected in software....
    believe me, it ain't pretty to look at your images without a good profiled program.
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