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The 20" 2.0Ghz I'm typing this on is a fabulous machine - ridiculously good value for money and hasn't put a foot wrong since we got it.
 
Yeah, really, because the users here have nothing better to do than to submit pictures of their iMacs for this guy's approval.

The point here, is that there are photos from users demonstrating the gradient issue with their monitors, but there have been no pictures from users to demonstrate their monitors NOT having the issue. In fact, one poster even mentioned how he went to three different retail stores and all of the iMacs had the issue. Multiple users have been mentioning how they've been exchanging iMac after iMac because each one had the same issue. Some have even claimed that ALL iMacs everywhere may have this issue.

So it goes like this: there has been empirical evidence to validate claims of poor displays, and so far, NO evidence to support the claims of a perfect display with no problems. Therefore, this is not simply a "let's see pictures of an iMac" request. This is request for evidence to the contrary. Take the two minutes to just snap a photo, and provide evidence of your claims, which as of now, carry little merit.
 
Well, we could assemble acceptable evidence... or just let people say that all of our displays are bad until we "prove" they aren't...

Answer to thread title is... "All but a vocal few".
 
Well, we could assemble acceptable evidence... or just let people say that all of our displays are bad until we "prove" they aren't...

Answer to thread title is... "All but a vocal few".

And that vocal few tend to wind up in an on-line forum either looking for solutions or to vent. Hence the bias that you get from relying on forums as an indicator of the frequency of problems.

On the screen thing, mine is great. From other threads, here's a few photos in different lighting conditions and camera exposure settings:

alum_imac16.jpg


alum_imac18.jpg


alum_imac19.jpg
 
Looking at the OP post I think the theory of "vocal minority" is well understood, so why not drop those reminders already.

I for one am grateful for the existence of such threads and those who got no dud and chimed in. It's very informative for those trying to make a decision.

Thanks and keep it up!
 
The point here, is that there are photos from users demonstrating the gradient issue with their monitors, but there have been no pictures from users to demonstrate their monitors NOT having the issue. In fact, one poster even mentioned how he went to three different retail stores and all of the iMacs had the issue. Multiple users have been mentioning how they've been exchanging iMac after iMac because each one had the same issue. Some have even claimed that ALL iMacs everywhere may have this issue.

So it goes like this: there has been empirical evidence to validate claims of poor displays, and so far, NO evidence to support the claims of a perfect display with no problems. Therefore, this is not simply a "let's see pictures of an iMac" request. This is request for evidence to the contrary. Take the two minutes to just snap a photo, and provide evidence of your claims, which as of now, carry little merit.

No, actually it goes like this: if you want to submit meaningful data regarding your display and whether or not it has a gradient problem get a luminance meter and provide us with some detailed measurements.

There have been photos posted to these forums of solid white walls with "gradients". Digital photos of iMac displays are totally meaningless in terms of proving anything.
 
No, actually it goes like this: if you want to submit meaningful data regarding your display and whether or not it has a gradient problem get a luminance meter and provide us with some detailed measurements.

There have been photos posted to these forums of solid white walls with "gradients". Digital photos of iMac displays are totally meaningless in terms of proving anything.

The whole game is laughable too. I was the one who posted a gradient pic of my white wall. Ambient room lighting, the camera itself, reflectivity off of the glass at different angles all affect a photo.

Those calling for "evidence" when I posted the photos above, looked at the first photo, and claimed it was too overexposed to provide any meaningful results. I then took the 2nd and 3rd photos in different conditions and with the exposure settings adjust on the camera, and I thought the results were exactly the same as the first one. Yet there are still people who looked at the photos and said they looked like they had the gradient. I laid the left and right edges side by side in photoshop, could barely even see any difference, posted that, and then they claimed that comparing the left and right edges is not the best way to check for the gradient, because there could be local spots.

It is a shell game they are playing, because some are hell-bent on proving that there is some mystical universal problem with the screens. Problem is, they just keep ignoring the overwhelming evidence, logic and reason to the contrary. There have been dozens of posts and photos around here of outstanding looking screens. This is not a case of good screen not existing. It is a case of those who keeping calling for someone to post one playing a shell game and constantly changing the rules to make their flawed point.
 
Looking at the OP post I think the theory of "vocal minority" is well understood, so why not drop those reminders already.

I for one am grateful for the existence of such threads and those who got no dud and chimed in. It's very informative for those trying to make a decision.

Thanks and keep it up!

Same here. I'm still spooked, but I suppose in the next week or two I will make a final decision about getting one now or waiting until after January 15th. Just the possibility of having to return it even once to get a good screen bothers the hell out of me, so it's good to know that at least some people have good monitors.
 
I thought mine was a dud b/c the airport wasn't working, but now it's working like a charm :)
 
As mentioned on another thread my replacement iMac's screen is miles better than my original iMac, but not perfect.

This forum is great for finding information about everything to do with Apple. I think what upsets many in the iMac section is that some of those with poor screens give the impression that EVERY iMac screen is poor, and those who are happy with their iMac sometimes give the impression that those with defect screens are just whining about nothing, therefore winding each other up.

I have found this forum very comforting knowing that I was not alone with my problem. This is also a great place to get one's frustration out of one's system. I was also encouraged by this forum to return my iMac and I'm glad I did. I am a lot happier with my replacment iMac.

Is there a perect iMac? I suspect Steve Jobbs has one. Therefore I believe that not all Al iMacs are defect.
Do I believe there is a production problem for more than what is normal on the current Al iMac line? Yes I do.
Do I believe that forums like this one encourage Apple to make better products and fix problems? Yes I do, I'm certain Apple has people monitoring Apple forums to get feedback, it would be silly not to.

And yes it is quite normal for the silent majority who are happy with their product not to post, they have no reason to complain. It is obvious many are satisfied with their machines. But the occasional thread like this one to prove that it is not all doom and gloom makes a pleasent change, but please don't complain about people who have genuine issues with their machine. For many buying a new iMac is a big investment and if something is wrong then it is only right that Apple fix it and in my experience they will.
 
No, actually it goes like this: if you want to submit meaningful data
regarding your display and whether or not it has a gradient problem get a luminance meter and
provide us with some detailed measurements.

A camera IS a luminance meter; in fact, an 8 MP camera is 24,000,000 luminance
meters. Eight million each of R, G, B -- and each one accurate to better than 1%.

All it takes to get a good measurement is a nanogram of common sense:

- turn out the lights -- it's a LUMINANCE meter. Duh!

- stand directly in front of the screen

- set a sane exposure

- click

Digital photos of iMac displays are totally meaningless in terms of proving anything.

... not nearly as meaningless as fanboy "testimonials,"

LK
 
A camera IS a luminance meter; in fact, an 8 MP camera is 24,000,000 luminance
meters. Eight million each of R, G, B -- and each one accurate to better than 1%.

All it takes to get a good measurement is a nanogram of common sense:

- turn out the lights -- it's a LUMINANCE meter. Duh!

- stand directly in front of the screen

- set a sane exposure

- click

No one is using digital cameras to measure luminance in anything approaching a professional capacity. At best, even with no ambient light you get nothing that you could use for anything beyond a subjective analysis.

If you're not going to use the right tool for a job don't bother. Very interesting that a guy with "One measurement is worth a thousand expert opinions." is advocating such a half-assed practice.

... not nearly as meaningless as fanboy "testimonials,"

LK

Have you apologized to Czachorski yet? Or are you going to say he Photoshop'ed his pictures or that his camera settings were wrong?
 
I've had no probs with my 24" 2.8. :D


With regard to the screen gradient posts - When people take photos of the screen and there appears to be a gradient, how much of that is the lens/sensor? Has anyone taken photos at different zoom levels & cropped wider angle pics? I would experiment but I'm too busy actually using and enjoying my iMac to mess about :p
 
On the screen thing, mine is great. From other threads, here's a few photos in different lighting conditions and camera exposure settings:

Those could be doctored in PhotoShop.

No offense, but I think that we need to assume that all of the displays are bad unless you can submit proof that is independently verified by several qualified and unbiased third-parties. Would you consider hiring JD Power or a CPA firm to review the machine, your camera, your photographic technique, etc.?
 
You're kidding, right? You want to take a sample of N < 20 (I'm being generous here) and draw a conclusion about a population in the hundreds of thousands? And without any kind of quantitative data/inferential statistics other than subjective human perception? A camera may be a light meter, but a human is not. You still have to perceive its results. Take the human completely out of the equation and do some proper sampling and I may believe your claims. How can you claim that your own subjective perceptions are correct, while all of those listed here in contrary to your position are incorrect?

Enjoy your frivolous class action lawsuit...

Also, stop throwing the "doctored in photoshop" ruse around. Yours could be too. Everything could be. We could be living in the Matrix even as I type...

And finally, has anyone considered the perceptual effect of the black border on the new iMac screen creating a contrast with stark white that causes our eyes to perceive a bit of off white at the edges? Not to mention that the 24in screen is too wide to fit in your fovea, and therefore the edges are being perceived most of the time by your much less color sensitive peripheral vision? I'm not a sensation and perception psychologist, but I work with them. I'll ask about that later today and report back.

Those could be doctored in PhotoShop.

No offense, but I think that we need to assume that all of the displays are bad unless you can submit proof that is independently verified by several qualified and unbiased third-parties. Would you consider hiring JD Power or a CPA firm to review the machine, your camera, your photographic technique, etc.?
 
Also, stop throwing the "doctored in photoshop" ruse around. Yours could be too. Everything could be. We could be living in the Matrix even as I type...

It's a joke son, a joke. See attached pic.

OP asks "Did anyone not get a dud?". Practically everyone replies that they did NOT get a dud. Those replying get insults such as "You wouldn't know a dud if it fell on you, they are all duds and you are just too dumb to know it. I want this to be a big issue, MY big issue, and unless you start acknowledging that yours is a dud, I'm going to feel invalidated! So admit it, yours is a dud too!"

I think we all get that the OP claims are way overblown, that nearly all machines are unaffected. In an attempt to keep this a "big issue", discussions of the bit resolution of camera sensors occur. Which is pretty funny if you ask me. If we are going to demand spectrascopic analysis, why not independent third-party spectroscopic analysis? And not in someone's home, I demand lab conditions! Independent lab conditions! Under controlled circumstances! This is a big issue, I tell you!

My post was intended to lampoon those desperate attempts to make this molehill into a mountain. Unfortunately it was too similar to the actual posts to allow the lampooning to emerge!!!
 

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Sorry! I kinda figured it was, and then I got a little too preachy. I'm with 'ya...:D

It's a joke son, a joke. See attached pic.

OP asks "Did anyone not get a dud?". Practically everyone replies that they did NOT get a dud. Those replying get insults such as "You wouldn't know a dud if it fell on you, they are all duds and you are just too dumb to know it. I want this to be a big issue, MY big issue, and unless you start acknowledging that yours is a dud, I'm going to feel invalidated! So admit it, yours is a dud too!"

I think we all get that the OP claims are way overblown, that nearly all machines are unaffected. In an attempt to keep this a "big issue", discussions of the bit resolution of camera sensors occur. Which is pretty funny if you ask me. If we are going to demand spectrascopic analysis, why not independent third-party spectroscopic analysis? And not in someone's home, I demand lab conditions! Independent lab conditions! Under controlled circumstances! This is a big issue, I tell you!

My post was intended to lampoon those desperate attempts to make this molehill into a mountain. Unfortunately it was too similar to the actual posts to allow the lampooning to emerge!!!
 
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