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My new Retina iMac has some light bleed, too. It's only noticeable at backlight near the high end, on a completely black screen, so I'm not going to sweat it. It's unfortunately the nature of IPS panels, and given the rest of the system so far seems great, I refuse to go through the panel lottery any further.
 
my imac 5K has display bleeding. I took a foto in a complete dark room with a complete black background.

Another one has the same problem: https://discussions.apple.com/message/26986422?ac_cid=tw123456#26986422


I cannot believe, that all the screens here in the forum are perfect. Can you test it again in complete dark room with a complete black image and full backlight. please post a photo

Thank you

My first one looked slightly worse than that and my second one looks about the same (hard to tell on a picture).
Wouldn't bother returning it if it's not annoying you at normal usage.
 
These are results of x-rite Display Pro 1 Display Uniformity Results. As you can see luminance is pretty good, but nasty white point discrepancy in lower left corner. Not too bad after looking at other 4k monitors I can find tested. Does create issues trying to do color corrections though since display has no sort of compensation like some monitors do. For color sensitive peeps like me who code as well, white shift is kind of annoying. Just putting this out there as each panel seems to be unique and OP asked. "How are your screens in the 5K iMac?" Also have a bit of flash lighting and clouding but minimal compared to other posts in this thread, livable but there.

http://99.111.69.60/esa/Desktop/Lumiance.png

http://99.111.69.60/esa/Desktop/white_point.png
 
I'm not inclined to obsessively run tests to unearth any minute screen issues, but my usually discriminating eyeballs tell me I have NEVER had a more uniformly better computer monitor!

In my late 2009 27" iMac (the one I am retiring) it had noticeable slight "yellowing" at the bottom 15% of the screen.

The retina iMac screen I received is breathtaking to me personally.
 
I'm not inclined to obsessively run tests to unearth any minute screen issues, but my usually discriminating eyeballs tell me I have NEVER had a more uniformly better computer monitor!

In my late 2009 27" iMac (the one I am retiring) it had noticeable slight "yellowing" at the bottom 15% of the screen.

The retina iMac screen I received is breathtaking to me personally.
Same for me. The best Mac screen I've owned.
 
My first Mac. I can only describe the retina screen as superlative, I have my PC on the same desk and it looks awful in comparison.

I can't notice any faults on the retina screen at the moment.
 
Its is ridiculous to look at every micron of the computer, and thats one thing. But screen retention, edge bleed and half a yellow screen is something that inhibits people from using the computer successfully. I work with photo, graphics and video so its CRUCIAL that my screen is perfect or as perfect as it can be since i need it for my work. Plus is not bad to ask for something that should be right to begin with. If you're stupidly looking at every micron then you're a jerk but this is not the case, at least for me.
If those details are so essential to your work then why are you even looking at consumer grade products? Perhaps you should have a Mac Pro or Mini and then a specialized colour corrected monitor. My friend has one of these, its not the nicest thing to look at but the colours are neutral and accurate. Consumer grade monitors are intended to enhance images, if you're working on these then the end result may be disappointing on other lesser monitors. If accuracy is "crucial" then get a dedicated professional "flat" monitor.
 
If those details are so essential to your work then why are you even looking at consumer grade products? Perhaps you should have a Mac Pro or Mini and then a specialized colour corrected monitor. My friend has one of these, its not the nicest thing to look at but the colours are neutral and accurate. Consumer grade monitors are intended to enhance images, if you're working on these then the end result may be disappointing on other lesser monitors. If accuracy is "crucial" then get a dedicated professional "flat" monitor.

Because I cant afford those monitors. The real calibrated broadcast monitors start anywhere from $3,000 to even $8,000, and thats only for the monitor dont mind the computer. I want the best out i can afford. I see no wrong with asking for a good screen which i can then calibrate myself to get it "flat". The real question is why do people have a problem with people getting a really good screen?
 
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Because I cant afford those monitors. The real calibrated broadcast monitors start anywhere from $3,000 to even $8,000, and thats only for the monitor dont mind the computer. I want the best out i can afford. I see no wrong with asking for a good screen which i can then calibrate myself to get it "flat". The real question is why do people have a problem with people getting a really good screen?
I don't have a problem w/ people getting a real good screen. But you get what you pay for. The iMac is a consumer grade monitor and at that price it's unrealistic to expect zero bleed. People get crazy on this forum looking for any irregularities in the dark whereas w/ normal conditions they'd never see the imperfections. If you really are a professional and it's "crucial" to your work then get a professional screen. That's all I'm saying. You can get a professional screen & a Mini for the same price as a pimped out iMac.
 
I don't have a problem w/ people getting a real good screen. But you get what you pay for. The iMac is a consumer grade monitor and at that price it's unrealistic to expect zero bleed. People get crazy on this forum looking for any irregularities in the dark whereas w/ normal conditions they'd never see the imperfections. If you really are a professional and it's "crucial" to your work then get a professional screen. That's all I'm saying. You can get a professional screen & a Mini for the same price as a pimped out iMac.

lol a mini... a mini is out of the question, do you really think id be able to edit 4k and panoramic raw files with good performance? it feels like youre a bit disconnected from these field to make these recommendations.

Respecting your comment about expecting "zero bleed". The current iMac i have has ZERO bleed, I want that but in retina. In other words retina panels with zero bleed do exist, and even at a consumer grade these screens should be right.. a little bleed doesnt bother me but ive gone through imacs where bleed its just horrible and you can see it in other shades of colors, so thats just faulty in my opinion. I just dont want that. Plus if you see apple imac video you can tell they are aiming it towards woking photographers and videographers which are not your regular "consumer". Lastly if this whole thing truly bothers then keep your sanity and dont come around reading this stuff.. just a suggestion.
 
I have a maxed out 5k retina iMac. I don't use it for more than forums, web surfing, email.

But OMG the screen is so good for all the text that I read.

I love it!
 
Light Bleed

My iMac has some noticeable light bleed on the top of the screen. It becomes apparent when watching youtube movie trailers with black bars on the top and bottom of the screen. I don't think I will be returning it as almost all have some sort of light bleed and when viewing anything else is excellent.
 
My iMac has some noticeable light bleed on the top of the screen. It becomes apparent when watching youtube movie trailers with black bars on the top and bottom of the screen. I don't think I will be returning it as almost all have some sort of light bleed and when viewing anything else is excellent.

Yep, that about sums up my RiMac, too.
 
27" iMac Retina 5K 1/3 Display Yellow

Right out of the box I noticed the Yellow Screen: Did the http://imac.squeaked.com/test.php test to confirm.

IMac Retina 5K displays has a noticeable much warmer (yellowing) tone towards 1/3 bottom of the screen. There was also 1 dead pixels lower left and edge bleed.

Apple support apologized and is sending a replacement. Hopefully the new one will be without a yellow tint.

27" iMac Retina 5K - 4.0GHz Quad-core Intel Core i7 - 32GB RAM - 3TB Fusion Drive - AMD Radeon R9 M295X 4GB GDDR5
 
lol a mini... a mini is out of the question, do you really think id be able to edit 4k and panoramic raw files with good performance? it feels like youre a bit disconnected from these field to make these recommendations.

Respecting your comment about expecting "zero bleed". The current iMac i have has ZERO bleed, I want that but in retina. In other words retina panels with zero bleed do exist, and even at a consumer grade these screens should be right.. a little bleed doesnt bother me but ive gone through imacs where bleed its just horrible and you can see it in other shades of colors, so thats just faulty in my opinion. I just dont want that. Plus if you see apple imac video you can tell they are aiming it towards woking photographers and videographers which are not your regular "consumer". Lastly if this whole thing truly bothers then keep your sanity and dont come around reading this stuff.. just a suggestion.

Well, I'd say if you're truly a pro and editing 4k and panoramics with that high of a level of scrutiny then you need the right tools to do your job and you don't have them. So stop being cheap, invest in the proper tools and amortize your costs over the life span of your expenditures and factor that as a business expense, write it off on your taxes and gain more work to offset your outlays.

I know plenty of pros who do quite well with color management on iMacs. I make pretty decent prints using my 2008 iMac and Epson 3880, but I don't sell them as a rule. I do, however, create art pieces that I sell and the color of my final product is good enough for me.
 
Right out of the box I noticed the Yellow Screen: Did the http://imac.squeaked.com/test.php test to confirm.

IMac Retina 5K displays has a noticeable much warmer (yellowing) tone towards 1/3 bottom of the screen. There was also 1 dead pixels lower left and edge bleed.

Apple support apologized and is sending a replacement. Hopefully the new one will be without a yellow tint.

27" iMac Retina 5K - 4.0GHz Quad-core Intel Core i7 - 32GB RAM - 3TB Fusion Drive - AMD Radeon R9 M295X 4GB GDDR5

Does the yellow tint go away if you tilt the display?
 
lol a mini... a mini is out of the question, do you really think id be able to edit 4k and panoramic raw files with good performance? it feels like youre a bit disconnected from these field to make these recommendations.

Respecting your comment about expecting "zero bleed". The current iMac i have has ZERO bleed, I want that but in retina. In other words retina panels with zero bleed do exist, and even at a consumer grade these screens should be right.. a little bleed doesnt bother me but ive gone through imacs where bleed its just horrible and you can see it in other shades of colors, so thats just faulty in my opinion. I just dont want that. Plus if you see apple imac video you can tell they are aiming it towards woking photographers and videographers which are not your regular "consumer". Lastly if this whole thing truly bothers then keep your sanity and dont come around reading this stuff.. just a suggestion.
Sounds to me like you're the one out of touch. A Mini is more powerful than you give it credit...but ya it's not the performance of a Pro...but then again you're the one who can't afford that. My suggestion was to get the better monitor. Nothing on here bothers me, it was a conversation...so don't start w/ that "don't come around" here BS because there's different opinions. Tends to come across as a bit whiny.
 
LG quality control of its screens over the last few years has been fair at best. Since this is a screen manufactured in a different way lets hope they got it right.
A friend got a 5K and it looks good, so theres hope.
 
Im super happy with my 5K iMac. Ive been running it through hell with work and hard labor for the past weeks and its been doing it with ease.

The screen is of course gorgeous. I had the previous iMac and for a couple of days they were standing next to eachother. Im not gonna compare contrast, color and resolution, on that part the 5k iMac is obviously way ahead of the non retina model.

I believe I was fairly lucky with the screen on my previous iMac, it gave image retention after 2 years of usage (so Ive sent it for a repair) . The light bleed was little but not noticable unless I had a black screen on it in a dark room. The New 5k iMac has no dead pixels, no retention and the bleed is even less. It is of course there if you look hard for it, but its not possible to see unless you have a black screen and its only in the very outer corners...meaning the black isnt completely consistent across the screen. SO better in every way. Im very happy.
 
Well, I'd say if you're truly a pro and editing 4k and panoramics with that high of a level of scrutiny then you need the right tools to do your job and you don't have them. So stop being cheap, invest in the proper tools and amortize your costs over the life span of your expenditures and factor that as a business expense, write it off on your taxes and gain more work to offset your outlays.

I know plenty of pros who do quite well with color management on iMacs. I make pretty decent prints using my 2008 iMac and Epson 3880, but I don't sell them as a rule. I do, however, create art pieces that I sell and the color of my final product is good enough for me.

Never claimed to be a "pro". Im not making enough money to buy an 8k mac pro and 3k to 8k, monitor.. Im not being cheap. Im a recent college graduate trying to make it in this crappy US economy. I have college loans, and much other bills to pay. I dont have a proper "business" however This doesn't mean i have to defer from creating the the art I want to make which involves stitching raw images in photoshop and dealing with 4k video.

The thing that bothers me a lot is that you rather defend a giant corp like apple instead of their end user. Let's stop taking brands as religion. It sometimes feels like anytime someone says something bad about apple or google or whatever.. the reaction tents to be "gtfo". These screen shouldn't have any problems and if you have heavy retention, MASSIVE bleed or dead pixels you shouldn't just accept it. They should be right. I'm merely asking to see if a lot people are experiencing these problems. If they are not then thats great, but if they are then shame on apple and not on me for trying to ask for a good screen.
 
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But you are making professional, and high professional at that, demands on a consumer-level product. I do expect all Apple products to operate within acceptable tolerances. It's just a matter of what is acceptable. The screen should be free of any and all manufacturer defects, that I agree on. Buy one. If it's not up to spec, return it and try something else.
 
therefore im looking for an acceptable product... I want no dead pixels, no massive yellowing, screen retetion or bleed. If it has a little bit then ok but it is so much that inhibits some my work then that shouldn't be right.
However why would apple then gear the Retina imac towards imaging professionals as shown in this video? i dont think they would do that if it was such a consumer grade machine??

https://www.youtube.com/watch?v=jZ5n6sxZyEQ

Im done explain why i want an acceptable machine. It is crazy to me that some of you see wrong on me wanting that. Say what you want... and throw your money down the drain and keep broken machines and just accept it. I for one wont do that, I like apple like many of you but I wont defend them if I get a defective machine. Im done with this argument. Lets move on.
 
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