Luminous Landscape Forum

Raw & Post Processing, Printing => Digital Image Processing => Topic started by: rainer_v on July 29, 2007, 07:28:16 pm

Title: problems with new mbp 15"
Post by: rainer_v on July 29, 2007, 07:28:16 pm
i just bought a new macbook pro with 2,2ghz, 4gb ram, 15" matte lcd screen and a
 250 gb samsung hd. what i found is this:

for some reason my lacie colormeter dont see the lcd monitor colors correct. it reads them by far to green and so the calibration results are with a magenta tint.
after many comparisions with my eizos i found out  that  
if i calibrate the screen with a 10m Magenta (lee) filter, the results are acceptable. Luminance has to be corrected about 20 for the light fall of through the filter, so adjusting the monitor with a setting of 60L  and 7000K result in a final luminance of 80 and a final temp of 6300K with acceptable grey balance.
has anybody an idea why the lcd screen is not interpretated well by the lacie claibration tool,- the pb g4 can be adjusted very good with the same tool and program.

i was readng that mac uses two different monitor manufactors in the 15". i would like to know which montior i have in mine .... is there a way to find it out? maybe i have the "bad" one,- at least i really cant understand how people may like this new lcd screens very much.... the gammut is narrow ( way less than sRGB ) and by far not as good as the pb g4 monitor ( which reach nearly the full sRGB colors ) , the angle change very much the colors.



also i made a mistake to build in the 250gb drive. saving big files and ps ( cs3 )  becomes so slow.... i will change it again.

further the powerbok has some strange noise, very low level but very uncomfortable in a silent environment, similar as the first serial of the mb-pro last year. the noise has nothing to do with the fan, its a seperate noise,- i hate it.

at all i am disappointed by the new macbook.
Title: problems with new mbp 15"
Post by: GregW on July 29, 2007, 07:53:26 pm
Can I suggest you take a look at http://www.robgalbraith.com/bins/content_p...cid=7-8741-9027 (http://www.robgalbraith.com/bins/content_page.asp?cid=7-8741-9027)

He reviews the new LED screen and describes his calibration experiences in comparison with the older model.  As for the display itself he describes it as 'Very, very good'

Worth a read imo.
Title: problems with new mbp 15"
Post by: rainer_v on July 30, 2007, 01:35:21 am
Quote
Can I suggest you take a look at http://www.robgalbraith.com/bins/content_p...cid=7-8741-9027 (http://www.robgalbraith.com/bins/content_page.asp?cid=7-8741-9027)

He reviews the new LED screen and describes his calibration experiences in comparison with the older model.  As for the display itself he describes it as 'Very, very good'

Worth a read imo.
[a href=\"index.php?act=findpost&pid=130524\"][{POST_SNAPBACK}][/a]

yes i already have read it. no comments about that.... except that i cannot understand him and his
test. no idea how he can write that.
Title: problems with new mbp 15"
Post by: jerryrock on July 31, 2007, 05:19:29 pm
Galbraith suggests setting the White Luminance to 120 cd/m2, white point 6000K and gamma 2.2 prior to calibration.
Title: problems with new mbp 15"
Post by: rainer_v on August 01, 2007, 01:48:45 am
Quote
Galbraith suggests setting the White Luminance to 120 cd/m2, white point 6000K and gamma 2.2 prior to calibration.
[a href=\"index.php?act=findpost&pid=130895\"][{POST_SNAPBACK}][/a]

and ? this does not change that the monitor is "seen with very different green-magenta spectrum.
maybe the calibration tools have to be updated for this lcd montors. or they behave so different from one to the next.
Title: problems with new mbp 15"
Post by: jerryrock on August 01, 2007, 01:38:57 pm
Quote
and ? this does not change that the monitor is "seen with very different green-magenta spectrum.
maybe the calibration tools have to be updated for this lcd montors. or they behave so different from one to the next.
[a href=\"index.php?act=findpost&pid=130962\"][{POST_SNAPBACK}][/a]

Maybe your colorimeter is faulty. Have you tried calibrating with a different device?
Title: problems with new mbp 15"
Post by: rainer_v on August 02, 2007, 03:33:09 pm
Quote
Maybe your colorimeter is faulty. Have you tried calibrating with a different device?
[a href=\"index.php?act=findpost&pid=131044\"][{POST_SNAPBACK}][/a]

yes, with a spider2  also it results in strange colors. didnt had an eye-one here.
Title: problems with new mbp 15"
Post by: eronald on August 03, 2007, 06:36:30 am
Colorimeters are notorious for being tuned to screen technology which is one reason the models appear and disappear so quickly. I think Huey might actually do well here because it's the most recent product...

I would expect a spectrophotometer -eg. EyeOne Pro-  to be able to calibrate the screen.
Although the cost seems high at first, I would strongly suggest that anyone in professional photography who has several screens invest in an EyeOne Pro and amortize the investment over a few years - divide the investment by the number of screens you need to calibrate and it becomes tolerable. And you might even use it for print profiles

Edmund