Go Back   Steve's Digicams Forums > Printers > Photo Inkjet

Reply
 
Thread Tools Search this Thread
Old Sep 24, 2002, 4:54 AM   #1
Junior Member
 
Join Date: Sep 2002
Posts: 3
Default if optimum resolution is 300dpi, what is the....

...point of having a printer which can print in the thousands of dpi? Please can someone explain
neily is offline   Reply With Quote
Sponsored Links
Old Sep 24, 2002, 6:21 AM   #2
Member
 
Join Date: Jul 2002
Posts: 86
Default

The optimum image resolution for printing is about 300 PPI (pixels per inch). The human eye is apparently incapable of distinguishing improvements from higher image resolutions than this.

This PPI measure has absolutely no relationship with the DPI (dots per inch) numbers quoted by printer manufacturers. Photo printers use multiple dots to recreate each pixel from the image. I think that how many dots are required for each pixel depends on the colour being recreated (more dots for a darker colour) and the technology used by the printer.

I am personally very suspicious that the recent jumps in quoted DPI (e.g. Epson from 2880 to 5760) have very little to do with print quality and a lot to do with marketing!

Chris
Chris R is offline   Reply With Quote
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 8:01 PM.