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Thread started 31 Oct 2008 (Friday) 12:02
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Need some help with sRBG calibration (CRT monitor)

 
fritzk3
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Oct 31, 2008 12:02 |  #1

I have scratched my head about this one for a couple of nights and can't seem to get things figured out, so I would appreciate a nudge in the right direction.

Equipment:
* Canon 400D, shooting in JPG mode and sRGB color profile
* Windows XP SP2, Samsung Syncmaster997DF CRT monitor
* Canon DPP, Photoshop CS2

Here's what I tried:
1. Checked the color temp of the monitor: 8900K. Colors look correct to my eyes.
2. Switch the monitor to sRGB mode, which automatically fixes the color temp to 6500K. IMMEDIATELY the color tone on the screen takes on a beige tint, especially noticeable on anything white (think blank doc in PShop)
3. Ran Abobe Gamma program through control panel, adjusting each color channel (R, G, B).

No matter what I do, I just can't get rid of the beige tint of the monitor.

I know I have a problem because recently I took some images in PS, did a Desaturate command to get them to B/W, and sent them to Costco. The prints I got back definitely had the beige tint and looked horrible. (Mind you, I did the work while the monitor was set to 8900K.)

What I am aiming for here is to make sure that what I see on the LCD on the back of my camera is the same thing that shows up on screen, and when I print out my pics.

I understand that I will need to embed a color profile (sRGB) in the pics that I export, whether from DPP or Pshop, but I want to know that the time I am spending in PP is going to produce the same thing on paper. I also know that I might be able to get better results from shooting RAW, but for now I prefer to shoot JPG to keep file size smaller and PP shorter.

Sorry for being long-winded... thanks for reading and assisting.

Can someone please help me figure out what I should do?


Canon 40D • EF-S 18-55 IS • EF-S 55-250 IS EF 28-135 IS USM EF 50/1.8 EF 85/1.8

  
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tzalman
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Oct 31, 2008 12:24 |  #2

I have the Samsung 793 DF CRT and I have calibrated it with the Huey calibrator. The Huey's interface allows you to turn the correction it makes on and off and when I turn it off I see the same beige color cast. With the correction on I get a close match to my prints. Not perfect, but close (which is the best you can hope for considering the basic differences between the two media.) Adobe Gamma cannot do a real calibration. Get a hardware calibrator, there are some fairly inexpensive but adequate ones available.


Elie / אלי

  
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fritzk3
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Oct 31, 2008 12:34 |  #3

On a separate note... if I completely Desaturated an image in PSCS2, why would it still have the beige cast when it came back from the printer? Shouldn't that command leave me with only black/white/grey?


Canon 40D • EF-S 18-55 IS • EF-S 55-250 IS EF 28-135 IS USM EF 50/1.8 EF 85/1.8

  
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tzalman
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Oct 31, 2008 13:17 |  #4

fritzk3 wrote in post #6598564 (external link)
On a separate note... if I completely Desaturated an image in PSCS2, why would it still have the beige cast when it came back from the printer? Shouldn't that command leave me with only black/white/grey?

Under what lighting are you viewing the print? Prints should be viewed in sunlight or under a D50 bulb.


Elie / אלי

  
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poloman
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Oct 31, 2008 13:35 |  #5

This may sound silly....
Are you wearing auto adjust lenses or colored contacts?


"All those who believe in psychokinesis, raise my right hand!" Steven Wright

  
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Lowner
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Oct 31, 2008 13:41 as a reply to  @ tzalman's post |  #6

Fritzk3,

I use an i1d2 to calibrate my Samsung 910n LCD monitor and when looking at a blank screen in a non colour managed application (like my version of Windows Internet Explorer that I'm using right now), my screen white is a pinkish light biege.

However when I use Photoshop and print using my colour managed workflow my prints are pretty close to the image I'm seeing on screen. The operative words are "pretty close", as trying to achieve a perfect match is next to impossible.

My old Epson 950 produced some very odd colour casts if asked to print a monochrome image. It naturally used the colour inks to (badly) produce black. Maybe you have a similar printer issue. My new R2880 produces perfect greyscale images but then thats what it's good at.


Richard

http://rcb4344.zenfoli​o.com (external link)

  
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René ­ Damkot
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Oct 31, 2008 14:10 |  #7

When coming from a monitor set at 9000 K, you will need some time to adjust to the (correct) 6500K.

9000K is *way* too blue.


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Need some help with sRBG calibration (CRT monitor)
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