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john_d._clark

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Posts posted by john_d._clark

  1. Ghost images like this are almost always due to a pinhole

    somewhere in the camera -- so you have two images forming, one from

    the lens, and one from the inadvertant pinhole camera. I suspect

    that it's due to something flexing just a little, and only

    occasionally when you rotate the camera to its side for the vertical

    photo.

    JDClark

  2. Joel, I develop 8x10s exactly the same way as 4x5s with one

    possible exception -- I usually develop just one negative at a

    time. I haven't gotten to the point where I can do more than one at

    a time, and in general I don't have so many to do...

    JDClark

  3. I have the Calumet shutter tester like Neil -- it's a great deal

    at about $75. Almost all large format shutters are somewhat

    inaccurate (but precise) at long and short speeds. I keep tables of

    speeds in my field notebook, so I know that my 210 is +1/2 stop at

    1/60, etc.

    I mark the range of shutter speeds that are accurate enough

    (within +/- 1/6 stop) so I know at a glance that my 210 is accurate

    between 1/2 and 1/30, and exposure need no additional adjustment.

    Of course, if the speeds are drastically out, it may need

    professional servicing.

     

    <p>

     

    JD Clark

  4. When I am feeling like you are describing, I recall this quote,

    attributed to Robert Hughes: "The greater the artist, the greater

    the doubt; perfect confidence is granted to the less talented as a

    consolation prize."

  5. Al,

    If you aren't sure whether it's been modified, you might also

    want to have it calibrated -- in other words, Calumet ought to be

    able to tell you, and at the same time calibrate it. I have a

    modified meter, and I was told to contact Service M-F at 800-462-

    2550, ext 2258 for full details. They might be able to tell you how

    to check without sending it in.

    JDClark

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