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don_wong

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Posts posted by don_wong

  1. Put a mirror at the subject location. With all of your rises, shifts

    and tilts zeroed out, move your camera around, and when you

    can see the reflection of your camera lens centered on your

    groundglass, then your camera's axis will be perpendicular to

    the mirror. Does that make sense?

  2. Steve:

     

    <p>

     

    Thanks for asking.

     

    <p>

     

    Please continue to do articles about digital. It�s the future of

    photography, without a doubt. There may be other sources for

    information about digital, but the revolution that we�re witnessing

    deserves to be reported from many different viewpoints,

    especially the ones that VC can provide.

     

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    For instance, an article could profile a great digital practitioner,

    his or her techniques, how those techniques affect the final

    images, and of course, a portfolio of images.

     

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    Don�t exclude the perspectives of the working professionals (for

    digital or film.) For that matter, why make a distinction? All

    practitioners, commercial, amateur, fine arts, young and old, are

    gaining experiences that are worth sharing.

     

    <p>

     

     

    DW

  3. I'm a contributor to that exhibit and unfortunately I won't be able to

    see it in NYC. An yes, I'm disappointed that the quality of the

    repros is not the best.

     

    <p>

     

    When turning over images for use in some else's media, there's

    very little control I can exercise over how well those images are

    reproduced. Maybe when I become world-famous, ha ha. Often,

    most of my effort is spent in negotiating the use fee, and by then

    I'm very tired.

     

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    If you'd like to see some other Weisman images that didn't make

    it into the show (I'm assuming my images made the final cut)

    check out my website. www.donwongphoto.com

  4. Damon:

     

    <p>

     

    I wonder if a field test might settle your doubts about focus

    accuracy, since final results on film are all you really care about,

    not a test that might involve any number of variables (such as

    where the matte surface of the groundglass is, or what the

    Fresnel might be doing to throw off your focus.

     

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    Focus a subject on the groundglass and shoot a number of

    sheets with a long lens wide open, using Kodak film in your

    Kodak holder. However, on successive shots, refocus the rear

    standard by 1/16 inch away from the plane of sharp visual focus.

     

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    Keep good notes on how each sheet was focused, and when

    you examine the sheets, the one that's the sharpest will tell you

    where your focus plane is.

     

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    Just a thought.

  5. I am anticipating the new single sheet Readyloads with guarded

    optimism. The singles will take more room, but will have the

    greater flexibility and security of keeping all sheets separate, ala

    Fuji.

     

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    I've talked with many users of the old system. Some have had

    many problems, others have had none. I had more problems

    before disassembling and reassembling the holder. I suspect

    that many of the problems stemmed from quality control in the

    manufacture of the holders and basic design flaws in the overall

    system, as well as user technique. (That's my own opinion, no

    hard evidence.)

     

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    I only hope that Kodak will achieve the same track record as

    Fuji's Quickloads (my experience: zero failures; also, I've never

    heard any complaints), and that they will make enough of their

    emulsions available in Readyloads.

     

    <p>

     

    Don Wong

  6. One instance I've found advantageous for putting filters behind

    the lens is when using multiple gels to correct artificial light color

    to match transparency film.

     

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    Multiple gels in front of the lens will cause ghost images of bright

    light sources (such as HID lights in a gymnasium). I use 3" gels

    for compactness, but they're too small to curve in front of the

    lens.

     

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    Rear lens elements are smaller than front ones, so the 3" gels fit

    there, with room for some curvature of the gels. The curvature

    removes the ghosts.

     

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    There are problems with this method, but it's the best way I've

    found to solve that particular ghosting problem.

     

    <p>

     

    Don Wong

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