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  1. gordo

    Overtime: To linearize your CtP plates or not?

    This longish post explains why a plate curve to linearize the plate before applying a press curve to deliver desired tone reproduction is an unnecessary waste of time. A bit of background Back in the old film to plate days the standard prepress procedure was to linearize film output. That...
  2. gordo

    scanner for prepress artwork

    A digital camera might do the job.
  3. gordo

    The Joy of Tariffs

  4. gordo

    printing with out dotgain

    Yes, some vendors would have you do this - but that does not make it right. In any case, the question about linearizing the plate is not what the OP asked about. I think I'll make this a topic for the next "Overtime" post where I can use colorful graphics to answer the question of...
  5. gordo

    printing with out dotgain

    That way if you have 4 sites - instead of 4 TVI curves then you have 8 different curves - 4 to linearize and 4 TVI curves. Then you have 2 curves instead of just 1 Again, 2 curves instead of 1 Again, 2 curves instead of 1 I guess I've just seen too many shops dealing with issues using 2...
  6. gordo

    Overtime: Extending the life of inkjet proofs

    Where do you think you’ve seen him?
  7. gordo

    Overtime: Extending the life of inkjet proofs

    A great deal of effort is put into the making of a contract quality inkjet proof. However, if it is not properly taken care of, its useful life can be shortened and its integrity as a color reference compromised. How the inkjet media and proofs are stored and handled, as well as their exposure...
  8. gordo

    Recycling

    Bingo!🤣
  9. gordo

    Recycling

  10. gordo

    Overtime: "DPI" and the misuse of graphic arts terminology

    Often the science is...ummm...bent...to suit the vendor's stories. And after all, printers are focussed on the goal of happy bill paying customers rather than on the workings of the technology.
  11. gordo

    Overtime: "DPI" and the misuse of graphic arts terminology

    The prepress and press worlds are some of the worse misusers of terminology with the all too frequent resulting confusion in sales, marketing, specification, and production. Here is one of the most misused: "DPI" (or as it is spoken of in the rest of the world: DPCM). "DPI" - Dots Per Inch is a...
  12. gordo

    Tariffs - Have they, or, will they impact your business?

    This whole debacle reminds of the phenomenon of firefighters starting fires so that they can take credit for putting the fire out: https://edmontonjournal.com/news/crime/firefighters-who-start-fires-a-look-at-the-phenomenon-of-firefighter-arson
  13. gordo

    Tariffs - Have they, or, will they impact your business?

    It is good that they are being transparent about the reason for the increased cost.
  14. gordo

    Getting Time off

  15. gordo

    printing with out dotgain

    GP: You should be doing that in any case. Absolutely. That being said, if your plate imaging is not stable/consistent then building any curve is an exercise in frustration. I respectfully disagree. The CtP vendor's job is to set up the plate imaging correctly - not to manage plate curves. A...
  16. gordo

    printing with out dotgain

    LOL - am I that predictable? ROTFL The key criteria is to make sure to set laser exposure and processing (or lack thereof) to the manufacturer's specifications so that the result is a robust halftone dot on the plate that maintains its integrity on press.the plate will have a characteristic...
  17. gordo

    printing with out dotgain

    Having low dot gain on press does not stop you from making a plate curve You seem confused - or maybe there's a language problem? When you say "I want my 50% to meet the 64% dotgain when printed" what you actually want is 14% dot gain {50 + 14 is 64) Forget linear. Erase it from your mind...
  18. gordo

    printing with out dotgain

    If your file requests 50% and the plate measures 50% and the presswork measures 64% then you create a plate curve that makes the plate measure a lower value - e.g. 50% on plate is now 40% on plate. With press dot gain the 40% plate dot becomes a 50% on presswork. The remaining question is why...
  19. gordo

    printing with out dotgain

    This is a common misunderstanding - even within print standards organizations. It's a big topic, but, briefly, "dot gain" should not be considered a target. Tone reproduction is. Plate curves are used to align tone reproduction in press work to a standard (industry or shop specific). It does...
  20. gordo

    Overtime: Continuous tone lithography - the Collotype process

    Look at any modern presswork under a loupe and you'll see those ubiquitous halftone dots. Even inkjet presses use dots to create the final image. However, there is a printing process that eliminates halftone screening completely and renders true continuous tone lithography. On the left is a...
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