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Participating Frequently
October 13, 2018
질문

When I view files on the desktop, my TIFF files look different to my JPEGs.

  • October 13, 2018
  • 2 답변들
  • 3190 조회

I've noticed other forums discussing with terminology like gamuts, but I'm fairly new to photoshop so please explain to me like you're explaining to a child, if you can.

I made a picture (I coloured it in CMYK because I only ever intended to use this project for print) and then saved some JPEG versions as tests, before saving the final product as a TIFF file. When observing them on the desktop however, whereas the JPEG files seemed largely unchanged the TIFF files seem somewhat greyed. Even the black tones, which I assumed would go unaffected.

I haven't got a proper printer available at the moment to test out if the final product will look normal in print, so in the meantime does anyone know if this is something I could fix?

    이 주제는 답변이 닫혔습니다.

    2 답변

    D Fosse
    Community Expert
    Community Expert
    October 14, 2018

    I suspect the complicating factor here is CMYK. Very few standard image viewers can handle CMYK correctly.

    Thomas, unless this is going to an offset press, don't use CMYK. Inkjet printers are RGB devices that expect RGB data, and you should work in RGB throughout.

    CMYK is strictly for offset print and has its own set of special requirements that you need to know and consider.

    Derek Cross
    Community Expert
    Community Expert
    October 14, 2018

    To add to D Fosse's excellent reply, alway work in RGB Colour Mode (the choice of RGB Colour Space is yours). Never convert to CMYK (unless there is a very specialised requirement). For commercial printing, such as when you place a PSD file in to  InDesign, you normally would select PDF/X-4 for the output, which will do then correct conversion to CMYK to supply the printer.

    For printing by a Bureau from your PSD file, follow their particular spec – they will often ask for the image(s) to be in JPG format in sRGB.

    For printing to your desk-top inkjet CMYK and CMYK Plus printer, print from RGB and allow the printer's software to undertake to conversion.

    Derek Cross
    Community Expert
    Community Expert
    October 14, 2018

    If there's a plus side, colour proofing between CMYK and RGB didn't show any obvious changes. So there's that.

    The guy I'd sent it to seemed indecisive himself on what kind of printing method it'd be. The problem is that, with this little set of projects I'm doing, doing little imagery for folks around town, a lot of them put a lot of faith in me, so if it helps I suppose I'll go with your suggestion and send JPGs, PDFs and PSDs (would TIFFs have no value?). I guess that way, they in turn can send all three to their printers to decide which one would be best?

    I was also under the assumption that JPGs were not recommended for this sort of thing, considering how much they downscale the file.


    We haven't discussed printing methods – maybe it'll be printed Screen printing (sometimes called Silk-screen).

    Can't you enquire?

    If you don't compress a JPG then any loss of quality is  imperceptible. (I think you mean "compress" not "downscale".

    Ussnorway7605025
    Legend
    October 14, 2018

    thomasd85022406  wrote

    When observing them on the desktop

    what software is reading the tiff file from your desktop?

    I would first assume that software is not set up to read Tiff correct... in most senarios a Psd file is the better thing to save a Photoshop as because Tiff is an uncommon file type made for reading raw images

    Participating Frequently
    October 14, 2018

    I'm on Windows 10 and the picture program is the custom "Photos", but I also tried looking at it in "Windows Photo Viewer" and that came out the same.

    I was under the impression that TIFF was necessary as PSD wasn't as easily transferable, but I'll give that a look.

    Also, what do you mean by "raw" images?

    Ussnorway7605025
    Legend
    October 14, 2018

    Psd is fast becoming a standard in its own right and there are a few (free) options if you need to send it to someone without Adobe... there is even a way to use your Adobe id to send it to someone without an Adobe sub

    back in the film days a photographer would always keep the raw negative that came with the camera and just makes prints from it... we don't use film anymore but the term raw stuck and a raw image is a special kind of digital file which resists editing, when you open a raw image in Lightroom for custom edits its sends a tiff copy of the file to Photoshop i.e, the raw image is not edited but copied and a seperate file is attached with whatever edits so the orginal can always be recovered