View Full Version : Calibration Inconsistency


Paolo Reyes
02-12-2007, 01:34 AM
There are quite a few threads relating to monitor calibration, I'm sure. And I've at least partially read through quite a few. I was not sure where to "ride" my current concern, so I decided to start a new thread.

My current set-up:
MacBook 13.3"
Samsung LCD (193BW)

I recetly ran my system through hardware calibration, using a Pantone Huey unit. I calibrated the laptop LCD first, then, I set the Samsung as the main monitor and calibrated that, so each would have its own profile. The results I got were rather strange:
- The Samsung calibration seems to have gone pretty well, after some fine tuning of the hardware brightness and contrast controls.
- The MacBook LCD, on the other hand, has repeatedly come out with an odd color cast. Particularly on neutral colors, such as greys, or even whites, the MacBook LCD has a warm, reddish cast. :( Brighter, purer colors, such as bold greens and blues, are hardly affected. But, in the neutral colors, the cast is pretty pronounced. I have redone it a few times, even experimenting on whether the base profile affects the outcome. Results have improved slightly with some tweaking, but I can't seem to get rid of the color cast entirely. :Sick:

The odd thing is, on both monitors, the added shadow and highlight detail is there, as is some additional color detail. It's only the color cast which throws everything off on the MacBook screen. :Angry:

Any ideas on why this is the result? Is it the glossy coating of the MacBook LCD? Is there something "off" about the native white point? More importantly, any ideas how I can work this out?

Many thanks!

Jo Avila
02-12-2007, 08:53 AM
I think that something in your system only allows the use of one monitor profile at a time. It's either the Samsung LCD comes out right and the Mackbook's display suffers.

I tried calibrating and profiling a Macbook Pro during the recent Photworld. A LCD projector was attached to the Macbook Pro. The profile that I would generate kept on being applied to the LCD projector and not to the LCD display. However, all the prints I produced consistently matched what the LCD projector was showing :D LOL!

Paolo Reyes
02-12-2007, 11:08 AM
Hmmm.... Sounds like a plausible explanation, Sir Jo. Might just be. But the odd thing is, on my system, the two displays supposedly use different display profiles, with different names even.

In fact the plots for RGB color gamut in the colorsync profiles are even different, with the Samsung profile showing a much wider gamut.

Well, when I'm at home, I don't mind using the Samsung as my main display, so I can work with that for now.

But I will try to get both displays working properly. I also plan to try calibrating and profiling another computer at home, to see if the results will be consistent with either of my displays.

Thanks for the reply. :)

I think that something in your system only allows the use of one monitor profile at a time. It's either the Samsung LCD comes out right and the Mackbook's display suffers.

I tried calibrating and profiling a Macbook Pro during the recent Photworld. A LCD projector was attached to the Macbook Pro. The profile that I would generate kept on being applied to the LCD projector and not to the LCD display. However, all the prints I produced consistently matched what the LCD projector was showing :D LOL!

Jo Avila
02-12-2007, 02:10 PM
Experiment some more and post if you find a solution :D

nino_carandang
02-12-2007, 02:14 PM
Although I read somewhere that the Huey produces inconsistent results since it only measures 3 colors. Let me check my links where it was.

Paolo Reyes
03-13-2007, 02:44 PM
Interesting update on this. Well, partial, at least....

I got in touch with PANTONE on this issue, and, to their credit, they have been very responsive, in terms of communication.

First, they told me that, by design, the huey was not designed to support multi-display set-ups. Neither was it designed to result in perfectly matched displays. However, they did admit that it was not supposed to result in any color cast, which, in my case, it did.

As such, they have told me, around a week ago, that they will be shipping me a replacement unit, and that processing has begun on this. I was pretty pleased that they replied, in the first place, and that they offered the replacement without my asking.

Now, it remains to be see how this will go. I'll try to keep this thread posted. :)

Jo Avila
03-14-2007, 12:15 AM
Hey, that was pretty okay customer service :D

Paolo Reyes
03-20-2007, 07:51 AM
My faith in customer service just got a shot in the arm! :Grin:

PANTONE has shipped me the replacement unit for my huey. It arrived yesterday. :) Unfortunately, I haven't been able to test it yet, so I can't say if it has improved any from my previous unit.

But, at the least, I am happy that they actually replaced the unit. The encouraging part is that they actually started processing the replacement and shipping arrangements, even before they saw the actual unit in question. All they did was to ask me to send them the serial number, which I could retrieve from a program window they specified.

Now, of course, I hope my results improve. But the fact that they have sent me the replacement is encouraging for me.

I'll keep you guys posted.

Interesting update on this. Well, partial, at least....

I got in touch with PANTONE on this issue, and, to their credit, they have been very responsive, in terms of communication.

....

As such, they have told me, around a week ago, that they will be shipping me a replacement unit, and that processing has begun on this.....

Now, it remains to be see how this will go. I'll try to keep this thread posted. :)