Sony DSC-F828

Discussion in 'Sony' started by Jon, Mar 13, 2005.

  1. Jon

    Jon Guest

    I am considering upgrading my 717 to the 828.
    Some reviews state this is a very good all-round non-professional camera.
    Other say it is well below par and stay away.
    Indoor focusing , purple fringing and other odd colour effects are mentioned
    as problems.

    Can anyone put this into perspective for me?
    Stay away or go for it?

    What is purple fringing?
    Would like to see and example of this.


    Thanks
    Jon
     
    Jon, Mar 13, 2005
    #1
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  2. Jon

    [BnH] Guest

    The Sony has purple fringing problem in most cases for sure ... but speaking
    of that ... my ED glass also has that problem in EXTREME condition.

    F828 is generally a very good cam, I know a wedding photographer that uses
    this cam for his 'fun' work ... and his work is darn breathtaking.
    http://www.forumkamera.com/gallery/gallery.php?user=saelanwangsa304

    But considering the price .. Canon 350D is another option you can look at :)

    =bob=
     
    [BnH], Mar 13, 2005
    #2
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  3. As you did not get an answer yet, here is the explanation: purple
    fringing is the effect that dark objects outside the center of the image
    - say as example dark branches of trees - do not reproduce as dark
    branches but have a colored edge - usually purple. This effect is
    noticeable if you enlarge quite a lot and if the contrast between
    background and object is quite significant as in the example of dark
    tree branches or edges of houses or similar objects.
    It has to do with the dispersion of the top layer glass which protects
    the image sensor and the angle of the imcoming light from the camera
    lens. Usually not really a problem unless you search for it. Sony in
    general is quite good but - if I would spend about US$800+ for a Sony
    828, I would add another US$150-200 and get a Nikon D70 with lens on
    offer...better image quality and a better investment for the future.
    Thats my 2pennies worth - rgds George
     
    Dr. Georg N.Nyman, Mar 13, 2005
    #3
  4. Jon

    k Guest

    | I am considering upgrading my 717 to the 828.
    | Some reviews state this is a very good all-round non-professional camera.
    | Other say it is well below par and stay away.
    | Indoor focusing , purple fringing and other odd colour effects are
    mentioned
    | as problems.

    I've been informed that this was cleared up after the initial run and isn't
    a problem anymore. I've no evidence of this though, but I have seen the
    results from a few late model ones and haven't seen anything to suggest it's
    there.


    | Can anyone put this into perspective for me?

    At the edge of the frame, on some hard edges (black/white) both blue and red
    was being interpreted by the sensor and registered as purple when the green
    sensors didn't get any info

    - it's the same old bayer array issues that any digital camera will
    experience (red/black, blue/black edge failure) which can and is corrected
    by software but wasn't in the early 828's. It's simply a case of the
    software masking for purple and interpolating in grey. Don't worry - all
    digicams interpolate data into the shots, after all some sensors have only
    got 25% of the sensor area covered with light sensors, where do you think
    they get the 'image' from? The image data missing is interpolated *into*
    the shot from the data the camera does actually see.

    In theory you could set up a grid showing happy faces and sad faces
    alternating along the bayer grid and take a photo at say distance a. and see
    only happy faces, move the camera the proscribed distance in the other
    direction and you'd see only sad faces (!) ..but I digress.


    | Stay away or go for it?

    go for it - it's a giant killer in disguise and has an unmatched colour
    fidelity given it has a 4 point sampling method across the spectrum and
    every other camera only samples 3 points. Design is brilliant too


    | What is purple fringing?
    | Would like to see and example of this.

    copy and paste the link below into your browser and see some examples:

    http://images.google.com/images?tab=gi&q=sony 828 fringing&safe=images&l
    r=&hl=en&

    while you're there type in Canon fringing, then Nikon fringing ;-)

    k
     
    k, Mar 13, 2005
    #4
  5. Jon

    Ian Rivlin Guest

    The Nikon 8080 or the Konica Minolta A2 are far better cameras. The
    Sony isn't bad but it certainly isn't the best.
    Ian
     
    Ian Rivlin, Mar 16, 2005
    #5
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