| Author | Thread |
|
|
03/28/2011 08:13:54 PM · #1 |
is it to set your resolution before saving a large jpg file to print? (300dpi)
I just don't print much myself. I let smugmug do the printing from my orders. When I crop for a certain size I space out the resolution size...don't know why. Do you need to have the resolution at 300 to get a good print? The file I have questions on is 1800 x 1400 @ 3.5mb., Unless saving as HR jpg. when saving I don't know what the resolution is. Now I haven't had any complaints. Should I be concerned? Any thoughts? |
|
|
|
03/28/2011 09:59:33 PM · #2 |
As long as you are not resizing the image and re-sampling then setting the dpi does not matter. The dpi will be determined by the pixel dimensions and the print size chosen when printing.
edit: I should add that if you wish to print the file then it can be a benefit to resize it (re-sample) by setting the dimensions and the dpi to assure a good print. Larger prints can do ok as low as 150 dpi but I prefer to keep it at 240 or better.
Message edited by author 2011-03-28 22:02:29. |
|
|
|
03/28/2011 10:11:45 PM · #3 |
Just did some testing and some searching. Looks like for minimum quality 150 DPI to excellent at 300 DPI. Like the idea of 240 dpi. I forgot to put a 3 day hold on this order. I know the people so I'll be able to see the prints. I think my files are sitting at 180 dpi. Thanks  jbsmithana for helping confirm things. |
|
|
|
03/28/2011 11:39:38 PM · #4 |
Remember that DPI* is a ratio related to the print size -- until you specify that, the DPI value does not matter, only the total number of pixels. For example, the same 2400 x 3000 pixel file is:
8" x 10" @ 300 dpi
16" x 20" @ 150 dpi
24" x 30" @ 100 dpi
4" x 5" @ 600 dpi
2.4" x 3" @ 1000 dpi
So, make sure your file is 150-300 DPI at the final print/output size.
*This should more properly be referred-to as PPI for Pixels-per-Inch -- the term "Dot" has too many meanings in the printing and photography realms and it can create confusion (and expensive printing errors!).
Message edited by author 2011-03-28 23:40:55. |
|
|
|
03/29/2011 08:19:37 AM · #5 |
Originally posted by GeneralE:
So, make sure your file is 150-300 DPI at the final print/output size.
|
Just to reitarate, when folks say they need a image from you, more often than not they will say something like "please send 300 dpi image". I always then ask at "what print size". What then follows is a series of dumb looks on their part while you try to explain that 300 dpi is a meaniningless number unless it is related to a print size. About half of the time they decide you are an idiot because you can not follow their "simple" instructions. Ahhh well... |
|
Home -
Challenges -
Community -
League -
Photos -
Cameras -
Lenses -
Learn -
Help -
Terms of Use -
Privacy -
Top ^
DPChallenge, and website content and design, Copyright © 2001-2025 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 11/06/2025 02:44:52 PM EST.
