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Digital BW, The Print

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RE: [Digital BW] Soft focus / Posterization

RE: [Digital BW] Soft focus / Posterization

2002-06-15 by Garcia, William

> Subject: [Digital BW] Soft focus / Posterization


Hi Jeff,

I started with the original Piezography plug-in/inks on a new 1160.  Never
had a problem with posterization anywhere even with "soft" images containing
subtle transitions in the deepest tones.  But I didn't care for the greenish
tone of the Piezo ink and the cost of the inks.  I then switched to the VMs
(changed the carts in my CIS) and the neutral curve was just the tone I was
looking for -- but I saw the same thing you're seeing with your VMs, that
is, posterization with some images that contain shadow detail in the deepest
tones with very graduated changes.  Two months ago I did one last (I hope ;)
switch to the MIS FS-N inks and going back to using the Piezo plug-in.  I'm
happy with the tone and it seems to have the great range of the original
Piezo with a slight compromise in the Dmax ( I get about 1.67 as measured
with my SpectroCam).  The price is also a big plus.  As for longevity, I'm
not a big believer in accelerated fade testing nor is it a great concern for
me but I believe the FS-N inks have held up well in the informal tests some
folks have conducted.  Hope this helps.

			William Garcia

Re: [Digital BW] Soft focus / Posterization

2002-06-16 by Jerry Olson

I've never seen posterization using the inks and curves you are using.
What kind of papers are you using? maybe a different paper could help.
Is there any evidence of posterization whatsoever on your monitor, at
high magnifications?

I've ued piezo, but switched to VM inks when I got the 1280 printer and
never looked back. I also have the Agfa T2500 scanner.

Hopefully someone who does portraiture every day will have a better
answer for you.

Jerry

Jeff Magidson wrote:
Show quoted textHide quoted text
> 
> Hi Everyone;
> 
> I have been making digital BW prints for over a year now and have hit
> somewhat of a brick wall.
> 
> 1/2 of my photographs are of landscapes and building. These images with
> sharp lines and distinct textures print quite beautiful and problem free
> using my Epson 1280 , MIS VM inks and Paul's curves.
> 
> The other 1/2 of my images are of portraits and nudes. These are much
> more problematic in their printing. It seems that images that are soft
> in focus in some areas or have very delicate wondering tonal transitions
> are quite prone to posterization.  It is almost like when the piezo
> heads have detail to print the do really well but when there is not much
> detail to hold on to things go haywire.
> 
> I am following all the well established procedures of good imaging. I am
> scanning well exposed medium format tmax-100 in 16 bit and an agfa
> T2500. My scans are so good that they require very little curve changes
> before printing. My histograms look good.
> 
> I am wondering at this point if it is one of two things that is causing
> posterization on some of my images. (1) could it be that the set of
> Paul's curves that I am using are just not fine tuned enough to work for
> some images with my setup. Would switching to a professional RIP such as
> ImagePrint or the Piezography Plugin and other inks allow me so print
> these softer images without posterization? Have users of these RIPs
> noticed a reduction in posterization problems?
> 
> (2) Could it be that the Piezo technology is just not capable of
> printing these kinds of softer focus grayscale images with out some
> posterization? Has anyone out there been able to print such images successfully??
> 
> Any input would be greatly appreciated!
> 
> -Jeff Magidson
> 
> 
> Please visit the Group Homepage to check the Files, Bookmarks, Polls and other resources as they are often being updated. The page is at:
> 
> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint
> 
> Please follow these basic guidelines:
> - Include your full name with your message.
> - Include the address of your website, if you have one.
> - As threads develop, trim off excess portions of earlier messages to keep them short.
> - As the topic of a thread changes remember to change the subject header.
> - Good manners are required at all time. No personal attacks or "flames."
> - Complete your Yahoo profile.
> - Before posting a question, search the message archives and the various resources on the homepage.
> 
> 
> 
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

Re: [Digital BW] Soft focus / Posterization

2002-06-16 by Steadman Uhlich

I make Piezography prints (original Piezo inkset) without posterization.  

Most of my prints/subjects are "portraits" and have large areas of solid greys (from a grey backdrop...not that it matters really that it is grey..wink)...and my critical observation of the skin tones is done on every print. As many of the portraits are closeups of women....skin tone appearance is important.

I use Piezography Inks and Piezography Software (v 6).  Very consistent and easy to use. 

Back last year...I was doing more testing of papers...and saw some posterization due to paper choice.  In other words, while printing the very same image from the same file and on 20 papers or so....I could see how the different papers had different qualities.  

Surprisingly, a few of the papers which have good "specs" (cotton, coated, mfc) had some posterization.  This was very disappointing as I bought boxes of this stuff...and did not get good prints from it.  But...that happens.  Materials make a difference. (grin)

I simply did not use those papers from that point forward. 
 
I currently use Hahnemuhle Photorag as my first choice for a portrait.  

If you already have the Piezo software, just try another set of papers...using Piezo inks (I suggest).  

If you are looking to change something..the paper choice is the fastest, easiest, and least expensive.  

Also try the new PiezoTone inks with the Piezo sw.  

Good luck, 

Steadman
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: Jeff Magidson 
  To: digital bw group 
  Sent: Saturday, June 15, 2002 12:11 PM
  Subject: [Digital BW] Soft focus / Posterization



  Hi Everyone;

  I have been making digital BW prints for over a year now and have hit
  somewhat of a brick wall.

  1/2 of my photographs are of landscapes and building. These images with
  sharp lines and distinct textures print quite beautiful and problem free
  using my Epson 1280 , MIS VM inks and Paul's curves.

  The other 1/2 of my images are of portraits and nudes. These are much
  more problematic in their printing. It seems that images that are soft
  in focus in some areas or have very delicate wondering tonal transitions
  are quite prone to posterization.  It is almost like when the piezo
  heads have detail to print the do really well but when there is not much
  detail to hold on to things go haywire.

  I am following all the well established procedures of good imaging. I am
  scanning well exposed medium format tmax-100 in 16 bit and an agfa
  T2500. My scans are so good that they require very little curve changes
  before printing. My histograms look good.

  I am wondering at this point if it is one of two things that is causing
  posterization on some of my images. (1) could it be that the set of
  Paul's curves that I am using are just not fine tuned enough to work for
  some images with my setup. Would switching to a professional RIP such as
  ImagePrint or the Piezography Plugin and other inks allow me so print
  these softer images without posterization? Have users of these RIPs
  noticed a reduction in posterization problems?

  (2) Could it be that the Piezo technology is just not capable of
  printing these kinds of softer focus grayscale images with out some
  posterization? Has anyone out there been able to print such images successfully??

  Any input would be greatly appreciated!

  -Jeff Magidson

  Please visit the Group Homepage to check the Files, Bookmarks, Polls and other resources as they are often being updated. The page is at:

  http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint

  Please follow these basic guidelines:
  - Include your full name with your message.
  - Include the address of your website, if you have one.
  - As threads develop, trim off excess portions of earlier messages to keep them short.
  - As the topic of a thread changes remember to change the subject header.
  - Good manners are required at all time. No personal attacks or "flames."
  - Complete your Yahoo profile.
  - Before posting a question, search the message archives and the various resources on the homepage. 




  Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. 



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

Re: [Digital BW] Soft focus / Posterization

2002-06-16 by Jeff Magidson

Steadman Uhlich wrote:
 
> Most of my prints/subjects are "portraits" and have large areas of solid greys (from a grey backdrop...not that it matters really that it is grey..wink)...and my critical observation of the skin tones is done on every print. As many of the portraits are closeups of women....skin tone appearance is important.
> 
> I use Piezography Inks and Piezography Software (v 6).  Very consistent and easy to use.
> 
> Back last year...I was doing more testing of papers...and saw some posterization due to paper choice.  In other words, while printing the very same image from the same file and on 20 papers or so....I could see how the different papers had different qualities.
> 
> Surprisingly, a few of the papers which have good "specs" (cotton, coated, mfc) had some posterization.  This was very disappointing as I bought boxes of this stuff...and did not get good prints from it.  But...that happens.  Materials make a difference. (grin)
> 
> I simply did not use those papers from that point forward.
> 
> I currently use Hahnemuhle Photorag as my first choice for a portrait.
> 
> If you already have the Piezo software, just try another set of papers...using Piezo inks (I suggest).

Steadman;

Thanks for your comments... they are encouraging! What printer are you
using? Do you have a Web page of your photography??

The posterization I am getting is not on my solid or mostly solid
backdrop but more in the tonal transitions on the skin where the tone
goes from light in to semi shadow like a shadow underneath a chin or a
shadow cast on the skin by and article of clothing. The posterization
does not appear on my monitor.

I am printing on EAM and Photorag 188. I am getting the same results on both.

I would like to try the Piezo plug-in and I might but it would be a $395
experiment. I wish Inkjetmall would offer Demo Software. Even if the
test print said "IJM" all over it I would still be able to see if did
the job for me or not.

-Jeff

Re: [Digital BW] Soft focus / Posterization

2002-06-16 by Steadman Uhlich

Hey Jeff, 

Glad the comments were helpful.  Why don't you drop me a line at steadmanuhlich@... and we can take the rest off forum for more details and suggestions. 

Steadman
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: Jeff Magidson 
  To: DigitalBlackandWhiteThePrint@yahoogroups.com 
  Sent: Sunday, June 16, 2002 5:20 PM
  Subject: Re: [Digital BW] Soft focus / Posterization




  Steadman Uhlich wrote:

  > Most of my prints/subjects are "portraits" and have large areas of solid greys (from a grey backdrop...not that it matters really that it is grey..wink)...and my critical observation of the skin tones is done on every print. As many of the portraits are closeups of women....skin tone appearance is important.
  > 
  > I use Piezography Inks and Piezography Software (v 6).  Very consistent and easy to use.
  > 
  > Back last year...I was doing more testing of papers...and saw some posterization due to paper choice.  In other words, while printing the very same image from the same file and on 20 papers or so....I could see how the different papers had different qualities.
  > 
  > Surprisingly, a few of the papers which have good "specs" (cotton, coated, mfc) had some posterization.  This was very disappointing as I bought boxes of this stuff...and did not get good prints from it.  But...that happens.  Materials make a difference. (grin)
  > 
  > I simply did not use those papers from that point forward.
  > 
  > I currently use Hahnemuhle Photorag as my first choice for a portrait.
  > 
  > If you already have the Piezo software, just try another set of papers...using Piezo inks (I suggest).

  Steadman;

  Thanks for your comments... they are encouraging! What printer are you
  using? Do you have a Web page of your photography??

  The posterization I am getting is not on my solid or mostly solid
  backdrop but more in the tonal transitions on the skin where the tone
  goes from light in to semi shadow like a shadow underneath a chin or a
  shadow cast on the skin by and article of clothing. The posterization
  does not appear on my monitor.

  I am printing on EAM and Photorag 188. I am getting the same results on both.

  I would like to try the Piezo plug-in and I might but it would be a $395
  experiment. I wish Inkjetmall would offer Demo Software. Even if the
  test print said "IJM" all over it I would still be able to see if did
  the job for me or not.

  -Jeff

  Please visit the Group Homepage to check the Files, Bookmarks, Polls and other resources as they are often being updated. The page is at:

  http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint

  Please follow these basic guidelines:
  - Include your full name with your message.
  - Include the address of your website, if you have one.
  - As threads develop, trim off excess portions of earlier messages to keep them short.
  - As the topic of a thread changes remember to change the subject header.
  - Good manners are required at all time. No personal attacks or "flames."
  - Complete your Yahoo profile.
  - Before posting a question, search the message archives and the various resources on the homepage. 




  Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. 



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

RE: [Digital BW] Soft focus / Posterization

2002-06-17 by Doug Fisher

>>I would like to try the Piezo plug-in and I might but it would be a $395
experiment. I wish Inkjetmall would offer Demo Software. Even if the
test print said "IJM" all over it I would still be able to see if did
the job for me or not.<<

Good suggestion in regard to a demo version!  I hope the Piezo people read
your post.

Doug

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