OT: What DPI/pixels per inch for printing?

Discussion in 'Digital SLR' started by Brian Baird, Aug 16, 2005.

  1. Brian Baird

    Brian Baird Guest

    First, don't set the DPI to any value when cropping in photoshop. This
    will resample the image - you might not want that at times.

    Typically you'll get good results between 200-300 DPI. Anything over
    300 DPI is the law of diminishing returns - the file size is huge and
    the difference in quality isn't much, or in some cases zero if the
    output device has a native resolution it uses.
     
    Brian Baird, Aug 16, 2005
    #1
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  2. Brian Baird

    Alan Browne Guest

    300 dpi is more than sufficient. 200 is too for most images.
    (Magazines screen at around 180, it's not quite the same thing, but for
    the sake of comparison you get the idea).

    So a 1200 x 1800 image --> 4" x 6" print.

    (How the camera sets the dpi is really meaningless in photoshop flow.
    Use the Image Size and dpi controls to set as you need)

    Cheers,
    Alan
     
    Alan Browne, Aug 16, 2005
    #2
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  3. Brian Baird

    Robbie Guest

    To get the best quality, you have to make sure you don't re-size or re-sample
    the original image in any way... After you crop and adjust the photo to your
    liking, you need to scale it for printing WITHOUT re-sizing!

    I don't know how to do that in Photoshop, I use Micrografx, and in that I set
    the resolution to the size I want...

    EG If my photo is 3000 wide, and I want a 6" print, I set the resolution to 500
    DPI and it works fine.
     
    Robbie, Aug 16, 2005
    #3
  4. Brian Baird

    Kelly B Guest

    Hi all, sorry for the off topic post, but I figure it's photography
    related and with the number of tech smart people here maybe I can learn
    something:

    What DPI should I crop my photos for printing to get optimum quality? I
    notice photshop defaults to 300 pixels per inch when cropping, is that
    sufficient? I have a 20D and a canon i850 photo printer and would like to
    know how to output all the detail and quality I can... Thanks in advance!

    KB
     
    Kelly B, Aug 16, 2005
    #4
  5. Brian Baird

    Stacey Guest

    Qimage

    http://www.ddisoftware.com/qimage/
     
    Stacey, Aug 16, 2005
    #5
  6. http://folk.uio.no/gisle/photo/pixels.html
    See Q11
     
    Gisle Hannemyr, Aug 16, 2005
    #6
  7. Brian Baird

    Kelly B Guest

    Thank you everyone, I understand the image pixels/printers dots-per-inch
    relationship better now! Now I just have to do some experimenting to see
    what effect it has on my printed photos! Thanks again.

    Kelly
     
    Kelly B, Aug 16, 2005
    #7
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