Hi all
I recently read somewhere (can’t remember where – doesn’t matter) that when using Epson printers, one should always format the image file being sent such that it has a resolution of 360 PPI (or a multiple thereof, 720, 1440, etc.). I seem to recall in the Camera to Print videos, that the suggestion for all (non-specific to printer) was 240 was sufficient and 300 was the max you should need. I do understand the difference between DPI and PPI. The statements centre around whether one should use an interpolation method to get to 360PPI in the actual print size desired (using Genuine Fractals, PS-CS4 or Lightroom’s bicubic methods or, if one didn’t, then the printer would use a less capable algorithm to do the same in order to print.
I am a member of the Epson Large Format Yahoo group and I posed a similar question to their members. The consensus response from them was that it DID matter and ideally you should re-set PPI accordingly. However, then some brought the discussion down to the biology of human vision, etc.
All I would like to ask is, does it make any real, noticable difference to the normal perception that one would have of a large format print, say 24 x 36 or is it all theoretical and doesn’t really matter.
My setup for those that may ask is a Vista x64 based PC driving a 7880 Epson using Lightroom and Photoshop CS4 – RAM and drive space are not issues.
Thanks in advance
mike