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Thread: What screen you use? AM, FM, mixed, concentric...

  1. #46
    Donor Dannymonky is on a distinguished road Dannymonky's Avatar
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    We use am screening and I'm sure we will till the end of days. Either that or go back to film...

  2. #47
    Donor jklee2k will become famous soon enough
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    Better Screen ?

    I think Better Screen is Kodak Maxton!
    Maxton is Creo Screen.

  3. #48
    Junior Member splashrip is on a distinguished road
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    Quote Originally Posted by jklee2k View Post
    I think Better Screen is Kodak Maxton!
    Maxton is Creo Screen.
    you mean Kodak Maxtone, another HybridScreening.

  4. #49
    Junior Member devil is on a distinguished road
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    using AM eliptical @ 175lpi2400
    and FM fine - coarse HDS, sometimes problems in highlights must be
    fine calibrated

  5. #50
    Junior Member rooftop is on a distinguished road
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    Hi all,

    For me, I use AM, Hybrid, and also FM. AM is the most friendly to deal during printing.
    Practically AM for the most of the jobs. Hybrid and FM for special request.

    FM is giving you better field of depth result but it is hard to maintain the even ink density during printing, the result will become "wavy". Specially if you have an object with screen tint and this object is quite big.

    If you want to have "FM like" then Hybrid Screening is the answer. But you must used the high frequency to have the "FM like" result. Hybrid Screening combined the AM and FM.

    With Heidelberg Prinect Metadimension Hybrid Screening, the 1%-7% dots are FM with 20 micron, 8%-93% are AM with 350 LPI, and 93%-99% are back FM with 20 micron. With this, during printing, it is more easy to control than full FM. Specially in gradation and screen tint.

    But you still need to have a good calibration, coz with 350 lpi the Dot Gains are also increase.

    rgds

  6. #51
    Donor Mogly is on a distinguished road
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    We use maxtone with thermal direct plate.
    With uncoated paper i work with 165 lpi. With coated paper at 200 lpi

    I waiting for news plates for use Staccato 20 (II generation). With actual thermal plate kodak guarantees only 25 microns, and I don´t like it because this plot makes some noise in dark tones

  7. #52
    PRC Member Tony14 will become famous soon enough
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    FM required an accurate and precise CtP... indeed, all points are terribly small...

    However, a good point is the quality of course, and no moiré anymore.

    Yet, Nobody has talked about that, but FM has an impact on ink consumption, indeed, you can save ink and get, usually, more saturated colors

  8. #53
    Donor threadNo245 is on a distinguished road
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    We use Staccato FM raster only on coated papers (mostly commercial high demanding prints). In other cases, good old AM is good enough. FM requires different calibration curve then AM because of higher dot gain, and it takes some time for customers to adjust. Our workers on print machines also must be very careful.

    In real life, most customers don't care or don know about raster dot type. But we successfully manage to make difference with some key customers so its worth of effort.

  9. #54
    Moderator super silja will become famous soon enough super silja's Avatar
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    Quote Originally Posted by DoctorBlade View Post
    I agree that it is improper for Esko to claim that there will be minimal dotgain if you use concentric screening. However, Kodak did not advertise that there will be minimal or no dotgain if you use Square Spot. If I understood correctly, Square Spot is to image the smallest possible dot on plate, like 10 microns when used with Quantum machines. They use it for 10 micron Staccato printing.
    hi doctorBalde
    when i speak about square spot, i mean that square spot is marketing trick.
    there is small scientific/theoretical, and no any practical reason for square spot advantage. square spot is made because creo/kodak create dot through square (optical) valve. and after that guys from marketing make all mess.
    maybe i am wrong, as i remember optical valve is 20 micron wide, so valve is open half period, spot is 20 micron wide and in half period during exposing produce 10 micron height ( please take care, maybe i am wrong, if somebody have valuable info please confirm or denies)
    anyway 10 micron non periodic screening is not recommended.
    if you use microscope you can see that stacato is same as harlequin FM. ( another marketing trick, with different for same thing people think that creo/kodak invent something special)

  10. #55
    Junior Member decoder101 is on a distinguished road
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    We use a 20 micron hybrid screening

  11. Your ad here

  12. #56
    Junior Member DoMe84 is on a distinguished road
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    I am using AM raster and 175lpi for all jobs, and FM HQ HDS for printing postmarks. Does anybody know what is the best screen angle for HDS raster??

  13. #57
    tim
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    Junior Member tim is on a distinguished road
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    Usually AM Eucludian 3000 dpi 175 lpi
    but want to try Hybrid HXM 2540 dpi 180 lpi

  14. #58
    Donor Speed_399 is on a distinguished road
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    we use agfa sublima screen

  15. #59
    shampa
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    We are using mostly 250lpi AM for coated stock, but are gearing up to try FM

  16. #60
    Junior Member jetair is on a distinguished road jetair's Avatar
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    HybridScreening
    175/2540
    Metadimension

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