Re: monitor contrast - too low?
Re: monitor contrast - too low?
- Subject: Re: monitor contrast - too low?
- From: Christoph Busch <email@hidden>
- Date: Sat, 31 Jan 2009 07:34:21 +0100
Hi Marco,
thanks for your answer.
Am 31.01.2009 um 05:17 schrieb Marco Ugolini:
In a message dated 1/29/09 10:53 PM, Christoph Busch wrote:
Hi,
i try to calibrate my monitor for a sublimation printer.
(I can't use a CMYK soft proof because its using RGB for printing)
You can also soft-proof RGB in Photoshop. No reason not to.
Yep - i got known of this (meanwhile) - will have to check with my
printer about that (i need still come kind of printer profile for this
- do i? when i use a RGB profile in my PS settings i cant simulate
paper.. so i am a bit confused how to achieve a paper simulation with
RGB settings..
Monitor: Samsung SyncMaster 226BW - contrast: 3000:1
Lightsource: 6500K
Calibrating: Spyder3 elite
Gamma: 2.2
System: Mac 10.5.6
You have a colorimeter, but no calibration/profiling software?
Of course i do - spyder came with a software
I did the calibration (the monitor settings hue and contrast) by
comparing printed out images to the monitor - finally i came up with
something like: 40% hue and 30% contrast (monitor auto control
switched off)
What you describe is not the kind of calibration that is done in
color-managed workflows. You use software to read absolute values
off the
screen, the software calibrates the monitor output to the specified
aims
(luminance, gamma, white point, etc.), and then the device is
characterized
(profiled).
None of this is done by eye or by comparing the display to a print.
I will try to clarify what i am doing: First i calibrated my monitor
with calibration software (and my standard settings mentioned below)
Than i checked the printed images against the screen and took
brightness and contrast down (to match the print) - afterwards i
calibrated again with this new settings. - I know soft proof is way
more comfortable but my printer didn't gave me a profile.
Now its looking pretty much like the print - except this mentioned
contrast shift.
(All this started because the images i delivered to the printer are
missing one f-stop (they were all one f-stop too dark) - so i thought
my monitor is too bright)
(My normal settings for web based images are 98% hue and 54% contrast
with slight monitor sharpening)
"Slight monitor sharpening"?
I can sharpen my monitor in monitor settings - when i set sharpening
to zero i cant read text very well so i do need some (about 20% for
Samsung) when i use my monitor for standard web work.
The problem: Most images look good in color and hue but there is a
significant shift in contrast looking and intense color (like brown,
yellow in my case).
To describe better what it's looking like: Take the basic settings
and
change the center level curve control in PS to 0.65 (1.00 by default)
But i can't find any control achieving this kind of contrast behavior
with my monitor (changing the contrast on monitor doesn't get any
closer) - i did several profiling attempts including some gamma 1.8
and mac system owned profiling.
Want kind of "profiling attempts"? Have you used profiling software,
or was
this done by eye?
I explained it above - i used profiling software all the way - my
problem was (besides this crappy attempt by simulating print with
monitor settings) the lack of contrast after profiling.
so my question: is this something my colorimeter should do
YES! Not only that: your colorimeter must be used with profiling
software.
Marco Ugolini
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