Hello,
Once again, I have a very basic question. Did a forum search, couldn't find a clear answer, so I'm opening a new topic. If I missed another one on the same subject, feel free to close this thread !
Here's my problem :
I want to make a 30cm x 20cm print of a 3456 x 2304 px file.
If I do nothing in photoshop, the resolution will be 292,608 PPI, and the print will come out with visible aliased edges (although the image shows no aliasing on screen).
If I resample the image to make it EXACTLY 360 PPI, and sharpen it accordingly, the image will print fine without any visible aliasing.
However, in the "From Camera to Print" tutorial, Jeff clearly says that one should not up-res an image besides a x2 or x4 enlargement. In my example, I'm increasing the size of the file by approximately 23%. But it's the only way I've found to have a satisfactory result on the paper.
So, two questions :
- Have I misunderstood something in what Jeff & Michael said about resolutions ?
- Does the PPI resolution have to be an absolutely round number, e.g. 180, 240, 300, 360...or is it ok to print a file which has an in between resolution, such as 343.342 PPI ?
Thanks !
Details :
Printer : Epson Stylus Pro 7900
Printing from : Photoshop CS 3 (Windows Xp)