Re: EPSON SC-P900 Ink Calibration image creation
There should be a "inkseparation10.tif" for 10 ink printers.
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Kang-Wei Hsu
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Effect of Fixatives on Inkjet Papers Preservation and Imaging Quality
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EPSON SC-P900 Ink Calibration image creation
Target Generator application has only 8 inks and names vary. Is there a guide to setup the program to print the target for the P900?
Using enclosed original inks (10) in positive.
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Hi All
Thanks for your help. Problem is now solved
When I checked for tif file compression I only checked a file that I had prepared and it was OK (but I didn't test in QTR), the problem file that I had tried to import into QTR was from another source and I had not checked that it was uncompressed. Just assumed that it would have been. When re-saved in uncompressed form all is good.
Thanks again and apologies for extending this problem longer than I needed to.
Cheers, Paul
On Wednesday, 3 July 2024 at 05:28:35 am AEST, Allan Greenier <greenier.allan@...> wrote:
You could drop the tif file in the files section here, you would learn if others also can’t open it.
On Jul 2, 2024, at 12:35?PM, David Nasater via groups.io <dnasater@...> wrote:
Paul,
QTR doesn't support TIF files with alpha channels. Make sure they are removed?
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You could drop the tif file in the files section here, you would learn if others also can’t open it.
toggle quoted message
Show quoted text
On Jul 2, 2024, at 12:35?PM, David Nasater via groups.io <dnasater@...> wrote:
Paul,
QTR doesn't support TIF files with alpha channels. Make sure they are removed?
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Paul,
QTR doesn't support TIF files with alpha channels. Make sure they are removed?
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Did you try with a tiff file not made by your computer/image software?
You can find free tiff test files on the net.
Sidney
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You'll need to try different things to see what the issue is on your program.
Do screenshots to show what you are doing.
Roy
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I just checked and compression was off for tif files
On Monday, 1 July 2024 at 05:15:35 pm AEST, Paul Temple via groups.io <camerart@...> wrote:
Thanks Roy, I'll try that.
Cheers, Paul
On Monday, 1 July 2024 at 03:11:20 am AEST, Roy Harrington <roy@...> wrote:
Hi Paul
Usually the issue with unsupported TIF files is the compression used when saving. Just leave Compression OFF when saving file.
Roy
I have recently installed QuadToneRIP to my PC.
When I add a tif file I get a message saying that tif file is not supported.
Jpegs work ok though.
Is there a solution to this?
Cheers, Paul
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Thanks Roy, I'll try that.
Cheers, Paul
On Monday, 1 July 2024 at 03:11:20 am AEST, Roy Harrington <roy@...> wrote:
Hi Paul
Usually the issue with unsupported TIF files is the compression used when saving. Just leave Compression OFF when saving file.
Roy
I have recently installed QuadToneRIP to my PC.
When I add a tif file I get a message saying that tif file is not supported.
Jpegs work ok though.
Is there a solution to this?
Cheers, Paul
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Hi Paul
Usually the issue with unsupported TIF files is the compression used when saving. Just leave Compression OFF when saving file.
Roy
I have recently installed QuadToneRIP to my PC.
When I add a tif file I get a message saying that tif file is not supported.
Jpegs work ok though.
Is there a solution to this?
Cheers, Paul
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I have recently installed QuadToneRIP to my PC.
When I add a tif file I get a message saying that tif file is not supported.
Jpegs work ok though.
Is there a solution to this?
Cheers, Paul
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Re: Yes, another ICC profile in QTR question....
Opps, I wasn’t very clear.
“And he said he didn’t see the point photographing his real prints… ?when emailing them for a gallery proposal
…because the simulations were that close.”
?
?
Roy wrote..
“RGB ones are equivalent. But standard soft-proofing in this context really doesn't show much useful info.??
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That’s not been my experience. ?The photoshop soft proofs using the RGB ICC profiles that QTR generates for the albumen, salt and cyanotype processes we have used are very close to the print.
And that is when doing the comparison in a GTI viewing booth. In fact the correlation between the print and the simulation for an albumen process I was working with at the time was so good that the photographer used the RGB ICC simulations of his albumen process
to email to galleries for making show proposals. And he only printed the negatives after they had make their selection. He once phoned me just to tell me how close his Albumen prints were to the simulations. In his words his prints were “almost identical”.
And he said he didn’t see the point photographing his real prints because the simulations were that close. And it saved him a ton of work making prints that the gallery wasn’t going to show.
?
We have our Cyanotype process RGB ICC profile in our student labs. While not perfect, the soft-proof is a good enough colour and contrast simulation for basic
wysiwyg contrast adjustments to the image.
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I am not sure why others are not having similar experiences with QTR’s RGB ICC simulations. Maybe it’s because the ‘Simulate Paper Colour’ has not been turned on in the soft proof display
options. If it’s off, the soft proof preview get seriously out of whack.
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Peter
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?
?
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Re: Yes, another ICC profile in QTR question....
Roy wrote..
“RGB ones are equivalent. But standard soft-proofing in this context really doesn't show much useful info.??
?
That’s not been my experience. ?The photoshop soft proofs using the RGB ICC profiles that QTR generates for the albumen, salt and cyanotype processes we have used are very close to the print.
And that is when doing the comparison in a GTI viewing booth. In fact the correlation between the print and the simulation for an albumen process I was working with at the time was so good that the photographer used the RGB ICC simulations of his albumen process
to email to galleries for making show proposals. And he only printed the negatives after they had make their selection. He once phoned me just to tell me how close his Albumen prints were to the simulations. In his words his prints were “almost identical”.
And he said he didn’t see the point photographing his real prints because the simulations were that close. And it saved him a ton of work making prints that the gallery wasn’t going to show.
?
We have our Cyanotype process RGB ICC profile in our student labs. While not perfect, the soft-proof is a good enough colour and contrast simulation for basic
wysiwyg contrast adjustments to the image.
?
I am not sure why others are not having similar experiences with QTR’s RGB ICC simulations. Maybe it’s because the ‘Simulate Paper Colour’ has not been turned on in the soft proof display
options. If it’s off, the soft proof preview get seriously out of whack.
?
Peter
?
?
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Re: Can I print black and white with only 8 of the 9 ink channels of a 3800?
Hi Mark,
Don't give up. Though i do not know anything about your printer I read some time ago about users let there printhead rest some time in contact with a cushion saturated with a solvent. Perhaps this could be a way to go for you.
horst
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Re: Can I print black and white with only 8 of the 9 ink channels of a 3800?
Hi Mark
Unfortunately the printhead has only 8 sets of jets, -- the blacks are switched before getting to the head. So if you are missing Y you only have 7 left to use.? You might ask Paul to recommend which ink to leave?out -- if you make your own curves you have a lot of flexibility.
Roy
I have given up trying to get my new to me 3800 printing on all ink channels..? The yellow appears to be dead.? I have taken it apart several times.? Cleared the yellow ink line, changed the yellow damper and even put a tube on the yellow feed tip of the print head and let ink jet cleaner sit in the tube hoping gravity would at least help the fluid reach and solvate the yellow head.? No darn luck.
Soooo, can I forget the yellow ink channel and use the other 8 inks and develop appropriate QTR B&W profiles?
BTW I am making my B&W inks up using Paul Roark's recipes.
Thank you
Mark
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Can I print black and white with only 8 of the 9 ink channels of a 3800?
I have given up trying to get my new to me 3800 printing on all ink channels..? The yellow appears to be dead.? I have taken it apart several times.? Cleared the yellow ink line, changed the yellow damper and even put a tube on the yellow feed tip of the print head and let ink jet cleaner sit in the tube hoping gravity would at least help the fluid reach and solvate the yellow head.? No darn luck.
Soooo, can I forget the yellow ink channel and use the other 8 inks and develop appropriate QTR B&W profiles?
BTW I am making my B&W inks up using Paul Roark's recipes.
Thank you
Mark
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Thanks so much, David, for the news and work!
Chris
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Hi Chris,
I am not a MacOs person so use QTRGui on Windows. ?I copied the .quad to the P900 profile folder, open QTRGui selected my p5370 printer, the P900 printer profile and the correct .quad
The negative was also printed on 8.5”x10” media using the top sheet feed and don’t see the classic pizza wheel marks either.
The P5370 is slightly smaller than the 4900 it replaced and uses the same ink waste tanks, paper tray, roll holder, etc. ?
Cheers,
David
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Hi Chris,
I am not a MacOs person so use QTRGui on Windows. ?I copied the .quad to the P900 profile folder, open QTRGui selected my p5370 printer, the P900 printer profile and the correct .quad
The negative was also printed on 8.5”x10” media using the top sheet feed and don’t see the classic pizza wheel marks either.
The P5370 is slightly smaller than the 4900 it replaced and uses the same ink waste tanks, paper tray, roll holder, etc. ?
Cheers,
David
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OH thank heavens. I’m getting one.
So David, did you do this first as Roy said:
“So just duplicate <cmd>D? the Install and rename to InstallP5370=P900.command”
Thanks for testing this!
BTW if you do VDB the profile has been working great. Testing it on argyrotype shortly.
Chris
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And
here are the results....
Looks like we have a confirmed winner. There is measurable tone at 5%, just hard to show in the photograph.
New Cyanotype Emulsion
Stock 100ml solution diluted to 200ml
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8"x10" Coating area
2ml of Cyanotype emulsion
.05ml 40% Citric acid solution
.05ml 10% Tween
?
Paper - Arches Platine
Darkroom / Paper regulated room at 50% humidity
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Exposure
90 Units
365nm LED Exposure Unit
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Development
2Min. 1% Sulfamic acid bath
5Min Water rinse
30Sec. Hydrogen Peroxide rinse
5Min Water rinse
?
Negative
Epson P5370 / Premium Photo Paper Glossy setting
Pictorico Ultra Premium
QTR P900 CyanotypeNew.quad profile from Chris
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And here are the results.... Looks like we have a confirmed winner. There is measurable tone at 5%, just hard to show in the photograph.
New Cyanotype Emulsion
Stock 100ml solution diluted to 200ml
?
8"x10" Coating area
2ml of Cyanotype emulsion
.05ml 40% Citric acid solution
.05ml 10% Tween
?
Paper - Arches Platine
Darkroom / Paper regulated room at 50% humidity
?
Exposure
90 Units
365nm LED Exposure Unit
?
Development
2Min. 1% Sulfamic acid bath
5Min Water rinse
30Sec. Hydrogen Peroxide rinse
5Min Water rinse
?
Negative
Epson P5370 / Premium Photo Paper Glossy setting
Pictorico Ultra Premium
QTR P900 CyanotypeNew.quad profile from Chris
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Kang-Wei Hsu
Sidney Kapuskar