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360 ppi frowned upon by offset printer

360 ppi frowned upon by offset printer

2007-05-03 by lovelipp

I assumed that 360 ppi was the correct resolution for my own inkjet 
printing and for discs to send to an offset printer for inclusion in a 
book. He says they prefer 400-600 ppi for best results. (We already 
clarified the ppi/dpi issue). I would appreciate advice from those 
experienced in dealing with offset printing houses. Should I start 
saving my images at higher res? I couldn't exist without this forum!  
Thanks so much
              Arlene
arlenelove3@...
www.arlenelove.com

Re: [Digital BW] 360 ppi frowned upon by offset printer

2007-05-03 by Mark Savoia

I was always told 300ppi.
Mark
Show quoted textHide quoted text
On May 3, 2007, at 6:21 PM, lovelipp wrote:

> I assumed that 360 ppi was the correct resolution for my own inkjet
> printing and for discs to send to an offset printer for inclusion in a
> book. He says they prefer 400-600 ppi for best results. (We already
> clarified the ppi/dpi issue). I would appreciate advice from those
> experienced in dealing with offset printing houses. Should I start
> saving my images at higher res? I couldn't exist without this forum!
> Thanks so much
>               Arlene
> arlenelove3@...
> www.arlenelove.com
>
>
>
>
> Please visit the Group Homepage to check the Files, and other  
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Re: [Digital BW] 360 ppi frowned upon by offset printer

2007-05-03 by john eckenrode

In years of press experience, I have always been told
300ppi for photos. but every printer does have there
own quirks.
je

--- Mark Savoia <mark@...> wrote:
Show quoted textHide quoted text
> I was always told 300ppi.
> Mark
>

Re: [Digital BW] 360 ppi frowned upon by offset printer

2007-05-03 by Jim Coffee

After I optimize I always do an intermediate save as .psd.  Full size image...all the pixels...doesn't matter whether 72 ppi or 180 ppi or 230 ppi or 300 ppi or whatever.

Then when the image is to be sent to email or the web I down size to 72 ppi X whatever pixel size I need.  

And when sending to a printer I resize to whatever inches they need and typically 300 ppi.

I teach this stuff and have a short blurb here about ppi/dpi.

-Jim Coffee-
www.jamescoffee.com
www.DigitalImagingBasics.com
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: lovelipp 
  To: DigitalBlackandWhiteThePrint@yahoogroups.com 
  Sent: Thursday, May 03, 2007 3:21 PM
  Subject: [Digital BW] 360 ppi frowned upon by offset printer


  I assumed that 360 ppi was the correct resolution for my own inkjet 
  printing and for discs to send to an offset printer for inclusion in a 
  book. He says they prefer 400-600 ppi for best results. (We already 
  clarified the ppi/dpi issue). I would appreciate advice from those 
  experienced in dealing with offset printing houses. Should I start 
  saving my images at higher res? I couldn't exist without this forum! 
  Thanks so much
  Arlene
  arlenelove3@...
  www.arlenelove.com 



   

[Non-text portions of this message have been removed]

Re: [Digital BW] 360 ppi frowned upon by offset printer

2007-05-04 by Ernst Dinkla

lovelipp wrote:
> I assumed that 360 ppi was the correct resolution for my own inkjet 
> printing and for discs to send to an offset printer for inclusion in a 
> book. He says they prefer 400-600 ppi for best results. (We already 
> clarified the ppi/dpi issue). I would appreciate advice from those 
> experienced in dealing with offset printing houses. Should I start 
> saving my images at higher res? I couldn't exist without this forum!  
> Thanks so much
>               Arlene
> arlenelove3@...
> www.arlenelove.com 

If he prints at the same size the ratio is 1.41x - 2 x the 
LPI he will use in his offset printing. So when he requests 
600 PPI and it will be printed at the same size you can ask 
the printer to use at least 300 LPI in the offset printing 
which is high but not impossible. Halftone screening or 
related quality stochastic screening.


Met vriendelijke groeten,  Ernst


|  Dinkla Grafische Techniek  |
|     www.pigment-print.com    |
|             ( unvollendet )            |

Re: 360 ppi frowned upon by offset printer

2007-05-04 by lensworkpub

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "lovelipp"
<arlenelove3@...> wrote:
>
> I assumed that 360 ppi was the correct resolution for my own inkjet 
> printing and for discs to send to an offset printer for inclusion in a 
> book. He says they prefer 400-600 ppi for best results. (We already 
> clarified the ppi/dpi issue). I would appreciate advice from those 
> experienced in dealing with offset printing houses. Should I start 
> saving my images at higher res? I couldn't exist without this forum!  
> Thanks so much
>               Arlene
> arlenelove3@...
> www.arlenelove.com
>

The rule of thumb for all offset printing is to have twice the dpi as
you have line screen -- i.e., 2:1 ratio. If you give the printer a
300ppi image, they'll do just fine if your offset is limited to a 150
lines-per-inch halftone screen. If you are printing images at a higher
line screen (and you should!), say 300 line-screen, then the printer
will need 600dpi images. The authoritative source for more on this is
the book Real World Scanning and Halftones by Bruce Fraser (RIP). 

If your printer is using stochastic screens (e.g., LensWork) you can
reduce this just a bit -- say to 1.5 to 1.

Hope this helps!
Brooks Jensen
LensWork Publishing

Re: 360 ppi frowned upon by offset printer

2007-05-04 by flyflightdeck

Are there two of these books?The one at Amazon doesn't list Bruce
Fraser as author, but four other guys.Just want to make sure I order
the right book.

> the book Real World Scanning and Halftones by Bruce Fraser (RIP).

Re: [Digital BW] Re: 360 ppi frowned upon by offset printer

2007-05-04 by Mark Savoia

I will sell you the one by Blatner, Fleishman, and Roth (Peachpit  
Press), I don't use it anymore. It is second edition.
Mark
Show quoted textHide quoted text
On May 4, 2007, at 2:43 PM, flyflightdeck wrote:

> Are there two of these books?The one at Amazon doesn't list Bruce
> Fraser as author, but four other guys.Just want to make sure I order
> the right book.
>
>> the book Real World Scanning and Halftones by Bruce Fraser (RIP).
>
>
>
>
> Please visit the Group Homepage to check the Files, and other  
> resources as they are often being updated.
>
> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint
>
> If you wish to receive no emails or just a daily digest, or you  
> wish to unsubscribe, please edit your Membership preferences by  
> visiting this same page.
>
> Please follow these basic guidelines:
> - As threads develop, trim off excess portions of earlier messages  
> to keep them short.
> - Good manners are required at all time. No personal attacks or  
> flames. Hostile, aggressive or argumentative users may be removed  
> from the membership without notice.
> - Keep your posts and threads related to the group topic of digital  
> B&W printing. Users who persistently make off-topic posts may be  
> removed from the membership.
> - By posting on this forum you agree to abide by the group rules  
> and guidelines, and to abide by the actions and decisions of the  
> group Owner and Moderators. See “Group Topic, Rules and Guidelines”  
> in the Files section:
> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/
>
> BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE  
> PRINT YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT THE  
> “OWNER” AND “MODERATORS” OF DIGITAL BW, THE PRINT YAHOO GROUP SHALL  
> NOT BE LIABLE TO YOU FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,  
> CONSEQUENTIAL OR EXEMPLARY DAMAGES, INCLUDING BUT NOT LIMITED TO,  
> DAMAGES FOR LOSS OF PROFITS, GOODWILL, USE, DATA OR OTHER  
> INTANGIBLE LOSSES (EVEN IF THE  “OWNER” AND “MODERATORS” OF DIGITAL  
> BW, THE PRINT YAHOO GROUP HAVE BEEN ADVISED OF THE POSSIBILITY OF  
> SUCH DAMAGES), RESULTING FROM: (i) THE USE OR THE INABILITY TO USE  
> THE DIGITAL BW, THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO  
> OR ALTERATION OF YOUR TRANSMISSIONS OR DATA; (iii) STATEMENTS OR  
> CONDUCT OF ANY THIRD PARTY ON THE DIGITAL BW, THE PRINT YAHOO  
> GROUP; OR (iv) ANY OTHER MATTER RELATING TO THE DIGITAL BW, THE  
> PRINT YAHOO GROUP.
>
> Yahoo! Groups Links
>
>
>
>
>

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