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Thread: What is 300 DPI?

  1. #1
    Moderator LOTUSfairy's Avatar
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    Default What is 300 DPI?

    I want to sent a (blur) pix from my India trip to PhotoVideo Magazine for them for critic, so I learn where I do wrong with this pix. The requirement is 300DPI...what is 300DPI?

    My original pix (in full size) is 4.28MB.. so what should I do to meet the 300DPI?

  2. #2

    Default Re: What is 300 DPI?

    Do a google search for "DPI" and you'll get "Dots per inch". You can set this property in PhotoShop.

  3. #3
    Moderator LOTUSfairy's Avatar
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    Default Re: What is 300 DPI?

    I dun have photoshop...
    so if i just send in my pixs at the original size...izzit oki? equivalent?

  4. #4
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    Default Re: What is 300 DPI?

    whats the point of knowing 300DPI, but dono the size of the print? you will still not know how big(pixel) they are asking for

  5. #5

    Default Re: What is 300 DPI?

    Quote Originally Posted by LOTUSfairy View Post
    I dun have photoshop...
    so if i just send in my pixs at the original size...izzit oki? equivalent?
    No. By default, your pic is usually 72 DPI.

    Try this:

    1. Right-click on a picture in windows and select "Properties"
    2. Select the "Summary" tab.
    3. Make sure the "Advanced" option is selected

    You should be able to see your horizontal and vertical DPI.

  6. #6
    Moderator LOTUSfairy's Avatar
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    Default Re: What is 300 DPI?

    Quote Originally Posted by Rashkae View Post
    No. By default, your pic is usually 72 DPI.

    Try this:

    1. Right-click on a picture in windows and select "Properties"
    2. Select the "Summary" tab.
    3. Make sure the "Advanced" option is selected

    You should be able to see your horizontal and vertical DPI.
    yes yes..i see it...it is 300DPI..

    thank you thank you

  7. #7

    Default Re: What is 300 DPI?

    Quote Originally Posted by ExplorerZ View Post
    whats the point of knowing 300DPI, but dono the size of the print? you will still not know how big(pixel) they are asking for
    Spot on!

    If 1.5" by 1", then 450x300 = 0.135 Megapixels would be 300 DPI already and the file would probably be about 50KB only.

    If 6" x 4", then 1800x1200= 2.16 Mega pxiels would be 300 DPI and the file would probably be about 800KB.

  8. #8
    Moderator LOTUSfairy's Avatar
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    Default Re: What is 300 DPI?

    Quote Originally Posted by Clockunder View Post
    Spot on!

    If 1.5" by 1", then 450x300 = 0.135 Megapixels would be 300 DPI already and the file would probably be about 50KB only.

    If 6" x 4", then 1800x1200= 2.16 Mega pxiels would be 300 DPI and the file would probably be about 800KB.
    thank you for your kind info...will keep in mind..

  9. #9

    Default Re: What is 300 DPI?

    300 dpi is the printing photo quality requirement. It also means if you want to print photo quality (very clear and details), you need to print in 300 dpi.

    So how do we calculate ?
    300 dpi
    = 300 dots per inch
    which means 1 inch there are 300 dots

    If you want to print 4R which is 6 inches X 4 inches ( or 6" x 4"),
    = (6" x 4") x 300
    = 1800 x 1200 dots or pixels
    See my Photo Gallery at the Clubsnap

  10. #10
    Moderator catchlights's Avatar
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    Default Re: What is 300 DPI?

    if your D80 is set at jpg large fine, pixel size is 3872 x 2592, by printing at 300dpi, your image can print up to 12.9" by 8.6", slightly better bigger than S8R, you can print up to 10" by 15" straight out from your camera also (@ 250dpi, the lowest lab requirement).

    if you intend to print any size smaller than this and do not need to re crop the images or any touch up, color correction etc, you can just sent to image file straight for print.

    hope this help.
    Shoot to Live, Live to Shoot
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  11. #11
    Moderator LOTUSfairy's Avatar
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    Default Re: What is 300 DPI?

    Quote Originally Posted by catchlights View Post
    if your D80 is set at jpg large fine, pixel size is 3872 x 2592, by printing at 300dpi, your image can print up to 12.9" by 8.6", slightly better bigger than S8R, you can print up to 10" by 15" straight out from your camera also (@ 250dpi, the lowest lab requirement).

    if you intend to print any size smaller than this and do not need to re crop the images or any touch up, color correction etc, you can just sent to image file straight for print.

    hope this help.
    thank you.. will keep in mind.

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