fringing issue with a canon powershot s2

Discussion in 'Digital Photography' started by name, Aug 4, 2005.

  1. name

    name Guest

    Hello.
    Here is a picture I took today with my brand new canon powershot s2 of
    my... erhm... tomato plants:

    http://www.ibbu.nl/~nsprakel/wiet.jpg

    One thing I noticed right away is the major fringing on the left side
    of the image on the left side of the pots. Is this something that might
    indicate there is a problem with the camera or is it something caused
    by a peculiar combination of camera settings and lighting conditions?

    I did expect there to be some fringing based on the reviews I read at
    "Steve's Digicams" and "DPReview.com", but this seems a bit extreme and
    it's not even at the outer edges of the image.

    Thanks in advance for any feedback, kind regards, Niek
     
    name, Aug 4, 2005
    #1
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  2. name wrote:
    > Hello.
    > Here is a picture I took today with my brand new canon powershot s2 of
    > my... erhm... tomato plants:
    >
    > http://www.ibbu.nl/~nsprakel/wiet.jpg
    >
    > One thing I noticed right away is the major fringing on the left side
    > of the image on the left side of the pots. Is this something that
    > might indicate there is a problem with the camera or is it something
    > caused by a peculiar combination of camera settings and lighting
    > conditions?
    >
    > I did expect there to be some fringing based on the reviews I read at
    > "Steve's Digicams" and "DPReview.com", but this seems a bit extreme
    > and it's not even at the outer edges of the image.
    >
    > Thanks in advance for any feedback, kind regards, Niek


    I believe that the results from the Leica lens in the Panasonic range
    (FZ5, FZ20) are better than this. It seems to me that Canon may have
    chosen to keep the image quality limited at the expense of other
    "features" in the camera. The S2 IS is their second attempt at an image
    stabilised ZLR, after all.

    David
     
    David J Taylor, Aug 4, 2005
    #2
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  3. name

    Pete R Guest

    "name" <> wrote in message news:...
    >
    > Hello.
    > Here is a picture I took today with my brand new canon powershot s2 of
    > my... erhm... tomato plants:
    >
    > http://www.ibbu.nl/~nsprakel/wiet.jpg
    >
    > One thing I noticed right away is the major fringing on the left side
    > of the image on the left side of the pots. Is this something that might
    > indicate there is a problem with the camera or is it something caused
    > by a peculiar combination of camera settings and lighting conditions?
    >
    > I did expect there to be some fringing based on the reviews I read at
    > "Steve's Digicams" and "DPReview.com", but this seems a bit extreme and
    > it's not even at the outer edges of the image.
    >
    > Thanks in advance for any feedback, kind regards, Niek


    The image is out of focus, for starters. And you need to meter on
    the brightest part of the image, in this case either on the white bricks
    or on one of the planters, where the sunlight is most intense.

    You can also try turning down EC 1/3 or 2/3 and you'll get much
    better results.

    And if you want to send me a sample from that third tomato plant
    I'll take very good care of it.. :)
     
    Pete R, Aug 4, 2005
    #3
  4. name

    Frank ess Guest

    name wrote:
    > Hello.
    > Here is a picture I took today with my brand new canon powershot s2
    > of
    > my... erhm... tomato plants:
    >
    > http://www.ibbu.nl/~nsprakel/wiet.jpg
    >
    > One thing I noticed right away is the major fringing on the left
    > side
    > of the image on the left side of the pots. Is this something that
    > might indicate there is a problem with the camera or is it something
    > caused by a peculiar combination of camera settings and lighting
    > conditions?
    >
    > I did expect there to be some fringing based on the reviews I read
    > at
    > "Steve's Digicams" and "DPReview.com", but this seems a bit extreme
    > and it's not even at the outer edges of the image.
    >
    > Thanks in advance for any feedback, kind regards, Niek


    You may have come up against the notorious "Purple Haze" effect that
    only surfaces in photographing selected subject matter.

    It's a joke.

    --
    Frank ess
     
    Frank ess, Aug 4, 2005
    #4
  5. name

    wavelength Guest

    I often forget to actually focus on one of the subjects before I frame
    the picture also.

    Try putting the pipe down and locking on one of the... ehrm, tomato
    plants, as you said, before framing the picture on all of them.
     
    wavelength, Aug 5, 2005
    #5
  6. On 4 Aug 2005 10:11:20 -0700, "name" <>
    wrote:

    >Here is a picture I took today with my brand new canon powershot s2 of
    >my... erhm... tomato plants:
    >
    >http://www.ibbu.nl/~nsprakel/wiet.jpg
    >
    >One thing I noticed right away is the major fringing on the left side
    >of the image on the left side of the pots. Is this something that might
    >indicate there is a problem with the camera or is it something caused
    >by a peculiar combination of camera settings and lighting conditions?
    >
    >I did expect there to be some fringing based on the reviews I read at
    >"Steve's Digicams" and "DPReview.com", but this seems a bit extreme and
    >it's not even at the outer edges of the image.


    Niek,

    some purple and green fringing is apparently unavoidable in all
    current superzooms, particularly at the long end of the zoom
    range.

    It is most pronounced near the edges, particularly the corners
    of the pictures. The fringes are usually up to a few pixels
    wide, like 5.

    They should not occur in the center of the pictures.

    Hans-Georg

    --
    No mail, please.
     
    Hans-Georg Michna, Aug 7, 2005
    #6
  7. name

    name Guest

    Pete R wrote:
    > "name" <> wrote in message news:...
    > >
    > > Hello.
    > > Here is a picture I took today with my brand new canon powershot s2 of
    > > my... erhm... tomato plants:
    > >
    > > http://www.ibbu.nl/~nsprakel/wiet.jpg
    > >
    > > One thing I noticed right away is the major fringing on the left side
    > > of the image on the left side of the pots. Is this something that might
    > > indicate there is a problem with the camera or is it something caused
    > > by a peculiar combination of camera settings and lighting conditions?
    > >
    > > I did expect there to be some fringing based on the reviews I read at
    > > "Steve's Digicams" and "DPReview.com", but this seems a bit extreme and
    > > it's not even at the outer edges of the image.
    > >
    > > Thanks in advance for any feedback, kind regards, Niek

    >
    > The image is out of focus, for starters. And you need to meter on
    > the brightest part of the image, in this case either on the white bricks
    > or on one of the planters, where the sunlight is most intense.


    OK, I experimented some more and indeed the purple fringing is much
    less pronounced
    when the picture is more in focus (still not sure if it's completely in
    focus here):

    http://www.ibbu.nl/~nsprakel/wiet.jpg

    I like being able to move the exposure/focus frame around on the S2 and
    I think
    the exposure is better on this pic, without any EC.

    >
    > You can also try turning down EC 1/3 or 2/3 and you'll get much
    > better results.
    >
    > And if you want to send me a sample from that third tomato plant
    > I'll take very good care of it.. :)


    Contact me by email and I'm sure we can come to some kind of agreement.
    :)
     
    name, Aug 16, 2005
    #7
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