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Author Topic: Slight Green Cast on gentle sepia images  (Read 1285 times)
georgeosman
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« on: December 20, 2018, 08:26:59 PM »

Hi there!

Long time enthusiastic amateur photographer; new to printing, I'm afraid!!

I have finally got set up for printing and have taught myself how to set up my Epson 2100. I use photoshop CS4 and shoot with canon.

It took a while, but after lots of research I managed to get a successful and colour accurate (to my eyes, anyway) print. I am using Canson Baryta 310g paper.

I went on to print a few black and white images which I give a soft split tone sepia to in photoshop before resizing and saving to TIFF format. sRGB colour. No colour adjustment in Qimage. As I have found, most prints come out darker on paper than on screen (understandably). The problem I get with my sepia images is that they have a slight green cast to them, which is a little off putting! Perhaps the colour photos also have it, but its less detectable!

Any suggestions from you lovely, helpful people would be greatly appreciated! It's a learning curve, this printing lark!!!

ps. I have attached an image that has had the green cast issue. It only seems to affect the darker areas. I have epson ink in there, not cheapo!
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Terry-M
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« Reply #1 on: December 21, 2018, 08:11:41 AM »

Hi, welcome to the forum.
Quote
Long time enthusiastic amateur photographer; new to printing, I'm afraid!!
Shock, horror, tut tut!!  Grin
 
Some questions and comment:
Quote
As I have found, most prints come out darker on paper than on screen (understandably).
This is usually because your monitor is to bright - match the monitor to your prints, not the the other way round.
Is you monitor calibrated with the profile showing in QU Properties and Settings tab?
Quote
No colour adjustment in Qimage.
What exactly do you mean by that? Have you got a printer profile for your paper-ink combination? "No colour adjustment" is the driver setting when a printer profile is used and set via the Properties button.

Quote
I give a soft split tone sepia to in photoshop before resizing and saving to TIFF format.
No need to resize when printing with QU; it has the best interpolation algorithms so save yourself some work. Use the original tiff and set the print size and cropping in QU.
Terry
« Last Edit: December 21, 2018, 08:16:58 AM by Terry-M » Logged
georgeosman
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« Reply #2 on: December 22, 2018, 06:31:47 PM »

Hi Terry,

Thanks for the reply!

Yes I have downloaded the printer profile for the epson 2200 (mine is a 2100, but they are basically the same as far as I can tell, and there wasnt one for the 2100!) and then set the driver to no colour adjustment.

I was originally getting a strong magenta cast, and found that to be due to double colour profiling, I now have the same problem but with it being more green! I am fairly sure it isn't due to my monitor not being professionally calibrated, as I do the minimum processing and certainly don't muck about with the hue! I am just curious as to whether its the printer, the file or what, as its quite annoying!

Thanks for the resizing advice - Ill start doing that!

Did the attachment send, by the way? Perhaps you could see if it looks funny on your monitor? I am going to try the monitor calibration to the QU P&S tab now and see if it makes a difference.

Does anybody have advice on how to brighten a photo in photoshop thats raw and all within gamma? should it look a bit 'too bright' on the monitor to compensate?

Thanks again, I appreciate the help!
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georgeosman
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« Reply #3 on: December 22, 2018, 08:57:59 PM »

ps. I have made a few more prints this evening and they seem to not be affected by any green cast, however, I am now getting some vertical banding! any suggestions?

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Terry-M
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« Reply #4 on: December 23, 2018, 08:01:55 AM »

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I am now getting some vertical banding! any suggestions?
Clogged nozzle(s) probably. Do a nozzle check again, clean and check again.

Quote
Did the attachment send, by the way? Perhaps you could see if it looks funny on your monitor?
No, it was not there. NB. only small files can be attached to posts: "Maximum attachment size allowed: 256 KB, per post: 4". If you have cloud storage (Google drive etc.), you could post a link.

Quote
Does anybody have advice on how to brighten a photo in photoshop thats raw and all within gamma? should it look a bit 'too bright' on the monitor to compensate
That is a completely wrong approach! I said in my first post print are usually too dark because your monitor is to bright - match the monitor to your prints, not the the other way round.
Quote
then set the driver to no colour adjustment.
It's still not clear if you are setting colour management correctly.
Is the profile for the paper you are using and showing in the properties tab, is the paper type set correctly?
See attached screen shots for my R2000, Properties tab with Epson gloss paper and Epson profile; Driver setting and Quality setting.
Terry.




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BrianPrice
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« Reply #5 on: December 23, 2018, 11:21:23 AM »

George
If your prints are darker than your screen, then simply your screen is too bright. The default setting when you calibrate your screen is just a starting point, and must be adjusted to suit your ambient light conditions. The correct way to do this is to re-calibrate your screen to a lower luminence value. The default value is usually 120 cd/m which is almost always too bright - I use 110 in the summer and 100 in the winter - the correct value is when your screen matches your print.

HTH

Brian
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mical
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« Reply #6 on: December 24, 2018, 10:21:52 PM »

EPSON PRINT SETUP/PROPERTIES/ADVANCED/ NO COLOR CONTROLS/ PAPER CONFIG/ /LESS 15% COLOR DENSITY.

when I had my Epson 2100 I found it was just putting to much ink on to the paper I adjusted ink density as above it might be worth a try.

After I reduced ink density the colour cast was no longer an issue.

Regards.
Mical
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