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  1. #11
    Mike Wilde's Avatar
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    I just take a black neg, and scratch the emulsion away around the edge of the neg carrier, using a pin. I then take this neg out, and use a steel rule to score similare pin scratches diagonally corner to corner.

    Project this neg and adjust til all of the lines are sharp.
    my real name, imagine that.

  2. #12
    michaelbsc's Avatar
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    Quote Originally Posted by keithwms View Post
    But every man of the new millennium needs to have a laser alignment tool, that's just the way it is.
    Well, even if it isn't that useful for aligning the enlarger, I'm certain I can make up some other excuse for buying it. Maybe aligning the celing fan or something. You never know when those might drift out of spec.
    Michael Batchelor
    Industrial Informatics, Inc.
    www.industrialinformatics.com

    The camera catches light. The photographer catches life.

  3. #13

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    Quote Originally Posted by Martin Aislabie View Post
    I hadn't realised quite how much an enlarger moves when you touch it :o

    Martin
    I used to use a Philips PCS2000 enlarger. Locking in the head height caused a major shift in alignment.

  4. #14
    eclarke's Avatar
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    Quote Originally Posted by Peter De Smidt View Post
    A Versalab Parallel laser alignment tool works really well.
    I second the Versalab and it's not much more money...Evan Clarke

  5. #15
    L Gebhardt's Avatar
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    Airgun laser site works well for me. $25 or $30 5 years ago. Easily adjusted in two axis.

  6. #16

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    Shape not Sharp

    Of importance when considering an alignment
    of an enlarger is the SHAPE of the projected
    image. An enlarger out of alignment will
    not project an image true to the shape
    of the object being projected.

    The projected image of the negative carrier
    may be used for alignment. The four square
    corners projected upon the baseboard may be
    checked using a small carpenters square.

    If it's not in shape it's not sharp. Dan

  7. #17

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    Quote Originally Posted by keithwms View Post
    what I do is inkjet a grid pattern on transparency film and then project that as I would a neg,
    Be careful talking about digital negs here on APUG! ;^)
    Kirk

    For up from the ashes, up from the ashes, grow the roses of success!

  8. #18

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    Quote Originally Posted by dancqu View Post
    The projected image of the negative carrier
    may be used for alignment. The four square
    corners projected upon the baseboard may be
    checked using a small carpenters square.

    If it's not in shape it's not sharp. Dan
    Or use a ruler to check if the parallel sides of the rectangle are equal.

  9. #19

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    Quote Originally Posted by Anon Ymous View Post
    Or use a ruler to check if the parallel sides of the
    rectangle are equal.
    First check with a square to confirm that it is
    a rectangle. It could turn out to be a
    parallelogram.

    BTW a projected image may be sharp but not
    square. For the projected shape to be true to
    the object being projected the optical axis
    must be perpendicular to the planes of
    both film and baseboard. That is not
    the case for sharp. Dan

  10. #20

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    Quote Originally Posted by dancqu View Post
    First check with a square to confirm that it is
    a rectangle. It could turn out to be a
    parallelogram...
    Parallelogram, or did you really mean trapezium? The most common misalignment should produce that.

    Can you misalign an enlarger and get a rhombus from a square frame?

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