You have hit on the key difference between display resolution of ppi and print
resolution, but there is an additional point as well:
Yes, the number of dots used by the printer to print the display pixel is set
by the print resolution.
But further, each printer dot is produced by a number of spots - I recall this
being discussed in a chapter of a book I read recently, with diagrams showing
the dot-spot relationship, but I don't recall which book. If it comes to me
I'll let you know.
Maris
----- Original Message -----
From: "Ken Durling" <kdurling@earthlink.net>
To: <filmscanners@halftone.co.uk>
Sent: Tuesday, November 13, 2001 11:38 AM
Subject: filmscanners: pixels, printer dots, etc
| Ok, I have I think I simple question, stemming out of my study of
| Wayne Fulton's scanning tips. Just getting clear, so forgive me if
| it's a stupid question.
|
| On page 67 of that book he shows a tiny 32 pixel image scaled to 5
| dpi. It's printed as a 6.4 inch graphic with pixels that are,
| obviously, 1/5 inch in size. My question is, what does this say about
| print resolution? The printer is obviously using a certain number of
| dots to produce one pixel. Is this number of dots specified simply by
| selecting the print resolution in the printer driver menu?
|
| Thanks
|
|
| Ken Durling
|
|
|
| Photo.net portfolio:
|
|
|
