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Author Topic: IS THIS A CALIBRATION ISSUE??  (Read 51390 times)
SMILING DOG
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« on: August 26, 2009, 08:00:31 PM »

When printing from my PC to my Epson 9880 the prints always come out too dark - way darker than they look on my monitor (HP 2207 22" flat screen) If I adjust blending mode to screen 25 - 100% in Photo Shop then they look great.  Colors match perfectly as far as I can see.  I recalibrate my monitor every two weeks.  I waste a lot of time saving several small versions at different screen mode % before I can run the final print. I only use Epson papers and use the profiles that came with my printer.

So is this a calibration/profile issue or is there a setting on my monitor that I should adjust - brightness perhaps?  Any suggestions with this would be greatly appreciated - as well as a better method to produce proof strips before I print.  A year ago or so I saw an ad for some software that did this, but now it seems that the company no longer exists.

Thanks from the newbie!
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Terry-M
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« Reply #1 on: August 26, 2009, 08:40:40 PM »

Hi again,
You may be in the wrong area (PP is a specific software package for making printer, camera etc.profiles but not to worry Mike can move this if required to Qimage or General.
It's not clear if you are talking about printing from Qimage, please clarify. Are you having the same problem printing through Qimage and PS? If that is the case, then it may well be a calibration issue.

It maybe your monitor is set too bright, does the calibration software allow you to set the luminance value, the norm for an LCD is 120 cd/m2 but some I know use lower values to get a better screen to print correlation. A manual approach would be to set the brightness to match the print appearance and recalibrate without changing the monitor brightness.

Another trick which I have used, still use, when prints are consistently dark wrt the monitor is to make use of the Qimage Print Filter. Make a filter to correct the dark print using Levels, Fill or a Curve, and apply that to all your prints with Qimage. NB. Different filters may be needed for different papers. You don't see any effect on the screen, just on the print. A little trial & error is required but once set, that's it. If you are new to Qimage, filters are non-destructive, the original image is not altered.
Since buying a better quality monitor, my need to use a print filter to lighten prints has diminished  Smiley
Hope that helps in some way, I'm sure others will have opinions on what to do too.
Terry.
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Fred A
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« Reply #2 on: August 26, 2009, 09:24:06 PM »

Welcome to the forum...

I have to agree with Terry to about 90%. :-)

If you are using the Epson profiles provided by Epson for the 9880, and matching the named profile to the named paper, and have the driver set to No Color Management, that print should be as close to the image as possible.
I show at least 20 or more paper profiles for that printer... So for example, if you are using PGPP Epsons Premium Glossy paper, the profile is called Pro 9800 7800 PGPP.icm
If all that is correct, then we go to the monitor. We must believe that the Epson profile along with instructed driver settings will produce the right print.
So how can we be wrong?
If the monitor is too bright, and the image looks OK/bright, then you will leave it unadjusted. If the monitor's brightness were toned down, and you saw the screen image as too dark, you might adjust the image lighter and brighter, and that will affect the print.
I suggest, MHO, that you may be profiling the colors just fine, but you should redo after setting the brightness down close to the print brightness.
Those LCD monitors are beauties, but need to be tamed.
Oh, the 10%.... I don't do print filters to lighten. Rather trust in setting the monitor to suit me.
Fred   Grin Cheesy Grin Cheesy

Fred
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SMILING DOG
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« Reply #3 on: August 26, 2009, 10:46:53 PM »

Oh, thank you both for your "bright" ideas.  Cheesy

Terry, yes my prints are too dark regardless what program I am printing from.  I have a print out of all 9880 profiles (all 49)  showing the names of the matching media, and as an extra precaution I always read the paper work that is included with any new paper I purchase.  So I am pretty confident that I have the profiles matched properly. 

Just before logging in to the forum I checked the settings on my calibration unit - it has several options i.e., photo editing & web browsing, video, gaming, warmer/cooler w/different levels of contrast for each.  This is an inexpensive Pantone Huey system, and although I don't see any options for setting numeric values, from various sources tha I have read lately they say the unit does an adequate job.  I am going to set the options noted above to a much lower (darker) setting and see if adjusting my images accordingly will correct the difference. 

That sounds like a very good possibility - I will let you know. 

Thanks so much to both of you!
Rhonda
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SMILING DOG
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« Reply #4 on: August 27, 2009, 03:11:49 AM »

 Smiley I decreased the brightness on my monitor as well as changed the setting for the Huey preferences and at least for this one sepia tone print I just ran it came out perfectly. What a relief to have resolved both of these on-going issues.

Thanks!!
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Terry-M
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« Reply #5 on: August 27, 2009, 08:10:20 AM »

Quote
Rather trust in setting the monitor to suit me
Fred knows that with my engineering/quality control background I like to see the numbers and work to those  Roll Eyes
However, Fred's pragmatic approach sounds fine, especially with the Huey. You may have to tweak the monitor now and again depending on it's stability.
Terry.
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Fred A
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« Reply #6 on: August 27, 2009, 10:34:45 AM »

Quote
I like to see the numbers and work to those

His numbers are always in Metric just to confuse me!!
 Cheesy
To me, the object is to be able to look at one's monitor, and to get very close..... close to what will appear on the print with regard to it all.
I expect the colors and the contrast and brightness to print as I saw it on the monitor.
I see no way (although I am the first to admit to mathematical disability) to numerically coordinate/calculate the brightness of an image on screen compared to the same brightness of the same image on paper.
Until I learn more, my eyeball will have to work for me.  Roll Eyes Cry

Fred
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Terry-M
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« Reply #7 on: August 27, 2009, 01:07:44 PM »

Quote
Until I learn more, my eyeball will have to work for me.
I find that I cannot easily do this reliably so having the monitor at a set value gives consistency. Eyeballing a print does have it's difficulties when comparing to  monitor, the ambient light can vary a great deal so there's no real control of that. It's also very subjective.
My problems have not been to do with dark-all-over prints but just lacking a bit of shadow detail, so making the monitor darker did not solve the problem. A simple print "Fill" filter worked very nicely; it could be this is more to do with the custom profiles I have although Epson and Ilford's own are the same.
One thing that has helped to remove the need for a print filter, other than having a better monitor, is that I've had to train my eye to make images "lighter" on screen. So again it's human perception coming into the equation. When I look back on old images on my new monitor, they now look dark. Is that the monitor or my re-trained perception  Huh?

Quote
I see no way (although I am the first to admit to mathematical disability) to numerically coordinate/calculate the brightness of an image on screen compared to the same brightness of the same image on paper.
My understanding is that the correct way to do this is to use a proper viewing booth with lighting conditions that match the monitor. Many calibration devices (Eye One 2) allow you to check the ambient light conditions wrt to luminance and thus you can get a numerically based match.
In fact, I'm considering buying one of those GrafLite's as an inexpensive alternative to a booth. I have to print during long Winter evenings so comparing print colour and brightness is not reliable in normal household conditions.
Having said all that, if eyeballing works for you, and others see your prints as good, then that's ok. "Sans eyes" obviously does not apply to you  Grin
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Seth
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« Reply #8 on: August 27, 2009, 02:11:07 PM »


My understanding is that the correct way to do this is to use a proper viewing booth with lighting conditions that match the monitor. Many calibration devices (Eye One 2) allow you to check the ambient light conditions wrt to luminance and thus you can get a numerically based match.
In fact, I'm considering buying one of those GrafLite's as an inexpensive alternative to a booth. I have to print during long Winter evenings so comparing print colour and brightness is not reliable in normal household conditions.

Terry-

I have the GMB Eye One Pro.  Forget ambient light unless you have no windows and always have the light on.  Drove me nuts until I profiled without ambient (easy Mode).

I don't use a booth.  For viewing I have a Tensor FS-124 right on the table.  Can post a pic if you'd like.  Small footprint and only comes on when you flip the bulb open.  Everyone talks about the Ott light (German??), but the Ott is $75; this is $42.  Uses the SAME bulb!! Both made by Philips I believe.  I bought the kit at a craft store but waited until they had a "40% off any one item sale."  Your mileage may vary.

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Seth
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« Reply #9 on: August 27, 2009, 03:02:31 PM »

I have a Tensor FS-124                            Can post a pic if you'd like

Seth
I am no pro, but if you don't mind. Would you post a pic of what you use .. Please
I do use an Ott lite to look at my photo.

Thanks
Ya Me
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rachlinent
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« Reply #10 on: August 27, 2009, 03:30:58 PM »

I have been an Epson user for many years including the 2200 since it was introduced and now the Epson 2880.  The problem is not with your monitor calibration.  The Epson printers do print darker than the screen.  The answer is to adjust the Color Density.  Go to Printer Setup in Qimage, then properties/paper config/ color density.  Adjust the color density so that the print matches the monitor.  I find I have to use -5.  Others have used as much as -12. 

If you change the monitor settings to match your printer, others looking at your images on their monitors will not see the "correct" image.

Howard
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Terry-M
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« Reply #11 on: August 27, 2009, 05:03:03 PM »

Quote
The problem is not with your monitor calibration
It could be if the luminance value cannot be set by the calibration software, as appears the case with a Huey device & software.

Quote
The answer is to adjust the Color Density
Unfortunately not all drivers have this feature, Epson or other makes probably. We are not all owners of the more sophisticated printers  Shocked That's where using a Print Filter come in.

Quote
If you change the monitor settings to match your printer, others looking at your images on their monitors will not see the "correct" image.
That's why working to a known value of luminance is a good thing. Trouble is, what is a truly "standard"  value, 120Cd/M2 is recommended for an LCD monitor but is it the standard?
Terry.
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Terry-M
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« Reply #12 on: August 27, 2009, 05:46:06 PM »

Quote
For viewing I have a Tensor FS-124 right on the table.
Seth, I Googled that and it looks almost identical to the GrafLite I can get I the UK, not as cheap though  Sad
Terry.
Edit, just added a picture of the GrafLite - attached. T
« Last Edit: August 27, 2009, 05:55:49 PM by Terry-M » Logged
Ya Me
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« Reply #13 on: August 27, 2009, 06:40:53 PM »

picture of the GrafLite - attached. T

Terry my Ott-lite looks just like that

Ya Me
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rachlinent
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« Reply #14 on: August 27, 2009, 08:25:22 PM »

I was not addressing the subject in general.  This is a known problem for Epson printers and a way to handle it while not changing anything to throw off a properly calibrated monitor.

Howard
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