Digital BW, The Print

Clayton,

Forgive me for posting this question here, but I could find no other
way to contact you to ask these questions.

On your sight, in Article 9 about printing with the R2400, in the
workflow section, you mention that you resize your file to 4" but you
do NOT resample.  Why not resample?  I noticed that when you don't,
the resolution goes up and the PPI doesn't change.  If the output
resolution is what determines the DPI of the print, wouldn't that
change the way the print looks by laying down more ink?

Thanks

Keith

Hello keith,

>On your site, in Article 9 about printing with the R2400, in the
>workflow section, you mention that you resize your file to 4" but 
>you do NOT resample.  Why not resample?  

Because resampling changes the size of the file.  I just want to make
a small print from the existing file size.


>I noticed that when you don't, the resolution goes up and the PPI 
>doesn't change.  

I'm not sure what you mean here.  The Resolution, as shown in the
Image Size window, _is_ PPI.  If the print size is made smaller, the
resolution (PPI) goes up and the file size remains unchanged.


>If the output resolution is what determines the DPI of the print, 
>wouldn't that change the way the print looks by laying down more 
>ink?

I'm a bit confused by your terminology, but I think I understand what
you're getting at.  First, I have read a variety of explanations on
what happens when we do this.  My understanding is that PS does do the
resampling in a temporary file before sending to the printer.  And of
course it decides what algorithm to use.  When _we_ resample we get to
choose the algorithm.  How important that is under various conditions
is another subject, but I consider it irrelevent for these small
initial proof prints.

When it comes time to make final prints of varying sizes, the question
arises as to whether we should make a 300dpi (resampled) file for each
size print we wish to make.  I think questions like this should be
answered by each user's own experiments.  There have been endless
debates on how much the print quality is affected by this.  I
recommend making several sizes of a file, using various resampling
algorithms (always leaving the master file intact), printing them at
various sizes, and determining for yourself what is the best approach.
 That's the only way you'll be fully satisfied.  Otherwise you'll just
be believing one person's theory or another.

For 4" initial proofs I don't think it matters.  I hope this answers
your questions.  


Regards,
Clayton


Info on black and white digital printing at    
http://www.cjcom.net/digiprnarts.htm

Thanks Clayton,

You answered my questions thoroughly and I have a better understanding
of what I am doing.  Your interpretations of what I was asking were
right on, despite my misuse of the terminology.  I will take your
advise and do more experimental prints to determine what is best for me.

Keith
http://kzarts.com


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Clayton Jones"
<cj@...> wrote:

>
> Hello keith,
> 
> >On your site, in Article 9 about printing with the R2400, in the
> >workflow section, you mention that you resize your file to 4" but 
> >you do NOT resample.  Why not resample?  
> 
> Because resampling changes the size of the file.  I just want to make
> a small print from the existing file size.
> 
> 
> >I noticed that when you don't, the resolution goes up and the PPI 
> >doesn't change.  
> 
> I'm not sure what you mean here.  The Resolution, as shown in the
> Image Size window, _is_ PPI.  If the print size is made smaller, the
> resolution (PPI) goes up and the file size remains unchanged.
> 
> 
> >If the output resolution is what determines the DPI of the print, 
> >wouldn't that change the way the print looks by laying down more 
> >ink?
> 
> I'm a bit confused by your terminology, but I think I understand what
> you're getting at.  First, I have read a variety of explanations on
> what happens when we do this.  My understanding is that PS does do the
> resampling in a temporary file before sending to the printer.  And of
> course it decides what algorithm to use.  When _we_ resample we get to
> choose the algorithm.  How important that is under various conditions
> is another subject, but I consider it irrelevent for these small
> initial proof prints.
> 
> When it comes time to make final prints of varying sizes, the question
> arises as to whether we should make a 300dpi (resampled) file for each
> size print we wish to make.  I think questions like this should be
> answered by each user's own experiments.  There have been endless
> debates on how much the print quality is affected by this.  I
> recommend making several sizes of a file, using various resampling
> algorithms (always leaving the master file intact), printing them at
> various sizes, and determining for yourself what is the best approach.
>  That's the only way you'll be fully satisfied.  Otherwise you'll just
> be believing one person's theory or another.
> 
> For 4" initial proofs I don't think it matters.  I hope this answers
> your questions.  
> 
> 
> Regards,
> Clayton
> 
> 
> Info on black and white digital printing at    
> http://www.cjcom.net/digiprnarts.htm
>