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/V\acpower

macrumors 6502a
Original poster
Jul 31, 2007
631
500
Ok, lots of peoples freaks out about glossy screen, and the MAIN thing that always comes out is that it "changes" color accuracy.

But, what does make color on a glossy screen innacurate compared to a matte screen since the last one add a "filter" on the screen that affect light who passes through it ?

In other word, what in the process of passing trought a clear glass makes color "less accurate" ? (since it IS clear glass....just like my glasses.)
 

FrankieTDouglas

macrumors 68000
Mar 10, 2005
1,554
2,882
For starters, things that are glossy reflect light. This means in addition to looking at your image, you are also looking at the colors of your room reflecting back at you. You look through your glasses. Look at someone else who is wearing glasses. See those reflections? Think of your monitor like that.
 

isIRus

macrumors newbie
Nov 13, 2008
3
0
North London
For starters, things that are glossy reflect light. This means in addition to looking at your image, you are also looking at the colors of your room reflecting back at you. You look through your glasses. Look at someone else who is wearing glasses. See those reflections? Think of your monitor like that.

Ended! Nice Explenation...;)
 

bashveank

macrumors member
Apr 24, 2008
52
0
For starters, things that are glossy reflect light. This means in addition to looking at your image, you are also looking at the colors of your room reflecting back at you. You look through your glasses. Look at someone else who is wearing glasses. See those reflections? Think of your monitor like that.

What if you're using a glossy screen in a dark room?
 

zombie1210

macrumors regular
Nov 9, 2008
130
0
Other makers have used glossy screens. I don't see what all the hubbub is about. They work fine. Its not like its a new concept.
 

Kwill

macrumors 68000
Mar 10, 2003
1,595
1
What if you're using a glossy screen in a dark room?

A discussion about screen calibration led to this point about glossy screens.

Graphics professionals are concerned about the glossy screen trend. Apple attempts to minimize glare by pushing more light though the screen. A [24]" LED Cinema Display is brighter than the current glossy iMacs. If this trend continues on all displays, it will be even more difficult to calibrate them. We actually prefer matte screens with the ability to dim to 120 L.
 

kkat69

macrumors 68020
Aug 30, 2007
2,013
2
Atlanta, Ga
I'm curious, I had my iMac calibrated and my print and display color is pretty damn near on mark. Of course I had it calibrated with the GLASS removed (which isn't actually true glass but a polymer) so my question is, are people having issue calibrating colors removing the 'glass' cover thus using the excuse of light reflection?

Yes, I know the LCD beneath the 'glass' is also glossy coated and to me the colors do really seem 'snappier' (couldn't resist working that in) but as long as I was able to calibrate it properly, I haven't had ANY issues regarding color.

I'm unsure about the current ALUM books if that protective 'glass' cover is removable, BUT (and this is the important party kiddies) even if the LCD beneath the cover was matte you wouldn't be able to properly calibrate it ANYWAY.

So again, has anyone calibrated an Alum iMac (with the cover off) or any other new Mac with the protective cover off to prove or disprove the actual LCD is causing calibration issues?

I see the posts a lot but no one has specified (that I found) if they did the calibration with the cover removed.

EDIT: I failed to mention that my calibration and the calibration I refer to is with an external device.
 

GoCubsGo

macrumors Nehalem
Feb 19, 2005
35,742
155
Ok, lots of peoples freaks out about glossy screen, and the MAIN thing that always comes out is that it "changes" color accuracy.

But, what does make color on a glossy screen innacurate compared to a matte screen since the last one add a "filter" on the screen that affect light who passes through it ?

In other word, what in the process of passing trought a clear glass makes color "less accurate" ? (since it IS clear glass....just like my glasses.)

Colors look over saturated.
 

Kwill

macrumors 68000
Mar 10, 2003
1,595
1
"Graphics Professionals" use 13 inch Macbooks?

Wow.
:rolleyes:

"Graphics Professionals" may use a variety of computers. Currently, I use three and none are MacBooks. Where did you get that idea. :confused:

The Apple Discussion was regarding the 24" iMac with glossy screen. The point made about calibration is that even the lowest brightness setting is way above target luminosity of 120. Though color hue can be set accurately, minimum luminosity is 160 (190 max). New LED displays are advertised as brighter (to offset glare) which can introduce more problems with luminosity settings.
 

duncyboy

macrumors 6502a
Feb 5, 2008
724
1
What if you're using a glossy screen in a dark room?

You'd still have the light from the monitor itself lighting your desk/face/clothes etc and being reflected in the dark. The impact would be much reduced in comparison to the day time or a brightly lit room but still there :)
 

chaos86

macrumors 65816
Sep 11, 2003
1,006
7
127.0.0.1
Did everybody forget that matte screens reflect light too, but it's diffused?
My Matte Powerbook gave me more reflection trouble than my Glossy MBP because (I believe) with the gloss, my brain can pick out and ignore the well defined reflections, but with matte, it's all a blur that can't be ignored.
 

Kwill

macrumors 68000
Mar 10, 2003
1,595
1
You'd still have the light from the monitor itself lighting your desk/face/clothes etc and being reflected in the dark. The impact would be much reduced in comparison to the day time or a brightly lit room but still there :)

]Did everybody forget that matte screens reflect light too, but it's diffused?
My Matte Powerbook gave me more reflection trouble than my Glossy MBP because (I believe) with the gloss, my brain can pick out and ignore the well defined reflections, but with matte, it's all a blur that can't be ignored.

The defused reflections from a matte screen are negligible. I doubt if most users even realize they are there. I have a Mac with a 23" ACD (matte) facing a window and a 24" iMac (glossy) facing away. Reflections on the glossy screen are not a problem in a dark room. However, in darkness pupils dilate so there is generally a desire to turn down the brightness. Unfortunately the iMac is turned down to its minimum brightness (160 L) even in daylight. :eek:
 

holden15

macrumors member
Sep 8, 2008
81
0
Austin, TX
Just got an iMac a few weeks ago. I have no problem with the glossy screen.

The iMac has the best looking screen I have ever seen, better than my MacBook Pro. (early 2008)
 

FrankieTDouglas

macrumors 68000
Mar 10, 2005
1,554
2,882
Just got an iMac a few weeks ago. I have no problem with the glossy screen.

The iMac's has the best looking screen I have ever seen, better than my MacBook Pro. (early 2008)

So, you have it properly calibrated and an appropriate brightness? If so, then you have no problems. Or you aren't interested in such things?
 

Digital Skunk

macrumors G3
Dec 23, 2006
8,100
930
In my imagination
GLOSSY SCREENS DO NOT hinder color accuracy. For those too young to remember CRTs were glossy....

And for those too young to remember or who never went to college and got a proper image toning/color proofing education you can get accurate color on a B&W monitor.... like the ones used in the early days of desktop publishing.

The glossy screens do suck since they have a reflection, but in NO way does it effect your color accuracy.

If they are, please see this link.

p.s. over-saturation and bad color comes from using the laptop displays, which DO have a color shift going from the matte to the glossy. Getting it close is the best you will do with a laptop display most time anyway.
 

iGary

Guest
May 26, 2004
19,580
7
Randy's House
GLOSSY SCREENS DO NOT hinder color accuracy. For those too young to remember CRTs were glossy....

And for those too young to remember or who never went to college and got a proper image toning/color proofing education you can get accurate color on a B&W monitor.... like the ones used in the early days of desktop publishing.

The glossy screens do suck since they have a reflection, but in NO way does it effect your color accuracy.

If they are, please see this link.

p.s. over-saturation and bad color comes from using the laptop displays, which DO have a color shift going from the matte to the glossy. Getting it close is the best you will do with a laptop display most time anyway.

The space between the glass and the actual LCD itself is more of an issue for calibration. CRT's don't have this air gap.

I have no issues with the color workflow on my laptop - never had to settle for getting it "close."
 

Digital Skunk

macrumors G3
Dec 23, 2006
8,100
930
In my imagination
The space between the glass and the actual LCD itself is more of an issue for calibration. CRT's don't have this air gap.

I have no issues with the color workflow on my laptop - never had to settle for getting it "close."

True, as for laptops their color gamut is just too short for me. In good lighting you can tell the difference between an image on a 23" ACD, the 17" hi res MBP, and the print itself.
 

iGary

Guest
May 26, 2004
19,580
7
Randy's House
True, as for laptops their color gamut is just too short for me. In good lighting you can tell the difference between an image on a 23" ACD, the 17" hi res MBP, and the print itself.

I won't disagree - I get more consistent and pleasant results out of my ACD than my MBP, so that's where I usually print from.

I actually have a friend that takes off the glass front on his iMac and calibrates right to the glossy LCD. He seems to have good luck with that, but what a pain in the ass.

Just wish Apple would, at least in the pro offerings, give us a choice.

If they go all glossy on their ACD's, which looks like the case, I'll have to get my displays elsewhere, or buy used ones online, which is saying a lot considering my blind Apple allegiance.

Anywhoo...
 

Kwill

macrumors 68000
Mar 10, 2003
1,595
1
The glossy screens do suck since they have a reflection, but in NO way does it effect your color accuracy.

If they are, please see this link.

Agreed. Reflection is more of a problem than lack of color accuracy. I calibrate every month with a glossy screen with the proper hardware. The software I use with eye-one device has the user specify whether profiling an LCD, laptop or CRT monitor as the first step.

Removing CLEAR glass to obtain better hardware calibration results is unnecessary. The reference book quoted makes a distinction between visual calibration and hardware calibration. As a carry-over from CRT days, the first instruction for visual calibration is generally to set display to maximum brightness. This is an inappropriate step for new LCD (or LED) displays.

Apple's misguided reaction to reflections is to increase luminance way beyond what graphic designers and photographers require for print simulation. So, though color cast can be eliminated from ICC profiles created with hardware devices, simulated paper brightness will be off and displays can wear out pupils in a dark room.

Desktop LCD displays have a constant source of power whereas laptops run on batteries. Hence laptops are generally not as bright as LCD ADC. LED is even brighter than LCD. These are the areas that most concern those in the professional printing industry.
 
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