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Thread: Scanner Tuning Comparisons

  1. #1
    Join Date
    Jul 2006
    Location
    Connecticut, USA
    Posts
    2,478

    Default Whats Up With These Scanners? :(

    here are pictures of my scanners on the RGB. i think these are WAAAAY outta wack. it seems as if (and i could be wrong...) that these are in need of some SERIOUS tuning.

    these were all imported into in LiveQ. they are the display files DL'd from adams scanner tutorial.

    whatcha think?

    -Marc
    Attached Thumbnails Attached Thumbnails TUNING2 001 copy.jpg  

    TUNING2 004 copy.jpg  

    TUNING2 006 copy.jpg  

    TUNING2 013 copy.jpg  

    TUNING2 017 copy.jpg  

    TUNING2 019 copy.jpg  

    TUNING2 020 copy.jpg  

    TUNING2 021 copy.jpg  

    TUNING2 022 copy.jpg  

    Last edited by gottaluvlasers; 07-07-2008 at 18:39.

  2. #2
    Join Date
    Dec 2006
    Location
    Pflugerville, TX, USA
    Posts
    1,977

    Default

    Well, your angle is way too big for testing. Assuming your scanners have around 40 degrees at 100% then you should be at around 20% (8 degrees) for testing. But even so, I see a lot of overshoot so they probably do need to be tuned up.

  3. #3
    Join Date
    Oct 2006
    Location
    Central Florida
    Posts
    7,067

    Lightbulb

    Yea man, you're spanking the shit out of them at those angles. My DT40s are tuned to 30K at almost 10 degrees, or 29% on my Pangolin settings. That is also a relative setting... depending on the gain of your scanners. Try yours at 30%, 30K...
    Love, peace, and grease,

    allthat... aka: aaron@pangolin

  4. #4
    Join Date
    Jan 2006
    Location
    Charleston, SC
    Posts
    2,147,489,073

    Default

    Carmagary is right, you've got lots of overshoot there, Mark! Need to add some LF damping on both X and Y.

    Before you tune though, remember to set the scan angle correctly. The ScanPro 30's are normally good for 12 to 15 degrees optical when displaying the ILDA test pattern, but I'd start with 10 degrees and see how they look first.

    And yeah, Aaron is right - no way you'll be able to run the ILDA test pattern with your size set to 100%!

    Adam

  5. #5
    Join Date
    Nov 2007
    Location
    Cairns, Australia
    Posts
    1,896

    Default

    I hope my galvo's dont come like that

    Hope you get them fixed up OK!

  6. #6
    Join Date
    Dec 2005
    Location
    GuangZhou of China
    Posts
    162

    Default

    All right.
    For test don't need 100% angle.
    See 30K@15 degress of test.
    Attached Thumbnails Attached Thumbnails ILDA.JPG  

    IMG_1390.jpg  

    www.DTelectronic.cn

    DT-40pro scanner
    DT45/50 scanner

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