| Author | Thread |
|
|
10/16/2002 10:00:46 PM · #1 |
For those interested in printing their images, or simply trying to get to the bottom of the resolution confusion, I found this article very useful.
|
|
|
|
10/16/2002 10:26:38 PM · #2 |
| Jak, I saw that article and meant to read it. I still haven't gotten to it yet though. Thanks for the reminder! |
|
|
|
10/16/2002 11:50:39 PM · #3 |
| Hey, I understand that resolution stuff a little bit and then I don't at the same time. I have a picture that is 11842 X 1472. What would be the printing size of that one? 10 X 30? Help. |
|
|
|
10/17/2002 08:52:07 AM · #4 |
Originally posted by Jubei Kibagami:
Hey, I understand that resolution stuff a little bit and then I don't at the same time. I have a picture that is 11842 X 1472. What would be the printing size of that one? 10 X 30? Help.
This is exactly what the article was talking about, just knowing
the resolution isn't enough to say what print size it would be
an 1842 x 1472 picture (assuming you typoed the 11842)
is
5.117" x 4.089" at 360 ppi
6.14 inches x 4.907 inches at 300 ppi
7.675" x 6.133" at 240 ppi
and
12.28" x 9.813" at 150 ppi
(where ppi is the numbers of pixels per inch.)
360 ppi is the normal suggested value for best quality,
but you can certainly print with fewer pixels per inch,
you just might not get such a sharp result.
Your printer on the other hand lays down dots per inch,
or dpi and more than one dot goes to make up one pixel, so you
should use your printer at about 1440 dots per inch, while
providing an image with 360 pixels per inch. That means that
for every pixel in your image your printer puts down 4 dots.
Another useful guide is that your ppi setting should be an
integer multiple of your dots per inch, so that your printer
software doesn't have to interpolate further to use say 3.12
dots for each pixel. So ppi values like 360, 288, 240 and 180 ppi
are the best to avoid further resampling when printing at 1440dpi.
|
|
|
|
10/17/2002 09:23:41 AM · #5 |
I get successful photo prints at just about anywhere above 200dpi. Granted, more dpi is better, but the quality has certainly been acceptable at 200+ dpi :)
|
|
|
|
10/17/2002 09:28:00 AM · #6 |
Originally posted by jmsetzler:
I get successful photo prints at just about anywhere above 200dpi. Granted, more dpi is better, but the quality has certainly been acceptable at 200+ dpi :)
A lot of that depends on the printer as well. Photographic print
machines are a lot more tolerant than inkjet printers. On a lightjet
you can easily use 150ppi images without problems, as the print
process interpolates much more seamlessly than the drivers in an inkjet
printer. It depends how the image is created on the page.
|
|
|
|
10/17/2002 02:24:12 PM · #7 |
Originally posted by Gordon:
This is exactly what the article was talking about, just knowing
the resolution isn't enough to say what print size it would be
an 1842 x 1472 picture (assuming you typoed the 11842)
is
[/i]
actually I didn't typo the 11842. I took a picture that long and was wondering how long I could make it. In Photoshop it says that it is 7.8 inches by 59.9 inches at 200 ppi. I don't know how to change the ppi higher to see what it would be. Then it might be way to skinny to make it more ppi too.
|
|
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: 08/26/2025 02:35:33 PM EDT.
