New iMac Display Sizes

I'm ready to buy one of the new iMac models but when looking at the current 20", 24" monitors, I think the 24" is the largest I can comfortable accommodate on my desk.
I note that the newly released iMac is available as a 21.5" or a 27" in a 16:9 ratio. What was the old ratio, or better yet, is the viewable screen size of a new 27" the same as the old 24" or is it larger?
If the new sizes equal the viewable sizes of the old iMac screens then I can accommodate a 27" model on my desk. If it is larger, I'll have to get a 21.5".
Thanks
kayjh

Again, the important thing is pixel count. A 50-inch HDTV may have a physically larger display, but it only has 1920x1080 pixels (the same as the 21.5-inch new iMac). Larger pixels does not let you do more with your computer, MORE pixels does.
You can figure out the pixel density this way. Using the [Pythagorean theorem|http://en.wikipedia.org/wiki/Pythagorean_theorem],
!http://upload.wikimedia.org/math/1/4/5/1455314a78f39a594485adbaf74d63f9.png!
figure out how many pixels go along th diagonal. You know a (2560) and b (1440), so you can figure out c. I get 2937 pixels along the diagonal. That diagonal is 27 inches, so the pixel density (pixels per inch) is 2937 divided by 27, or about 109 ppi.
For the 24-inch display, using the same math, it is only about 94 ppi.
So objects on the new display will look about 10% smaller than they would look on the old display. The new display will also look more sharp for the same reason. And as I mentioned above, the new display has 60% more pixels to work with compared to the old display.

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How do you know the best iMac display size

how do you know the best iMac display size
Only on them fits in the screen window and that makes the font so tiny. The others are too wide or too tall. I usually view at 150 - 200% for vision issues.

You say it's better to do the Media Browser? I'm fairly new to movie, dvd and garage band. How would I go about using the Media Browser instead of straight to iDVD?
Select Your project - go up to Share - Share to Media Browser and as Large (Not HD)
In iDVD select a nice theme - click on Media button - click on Movie - Select Your movie.
NOW - Save as a DiskImage - and test this before burning DVDs - if this Plays OK then either burn the Image by using Disk Util tool (and set down burn-speed to x4) - or burn via iDVD (will take more time)
I want to keep as much quality as I can.
Then don't use iMovie'08 or 09 or 11 - as they all discard every second line resulting in less quality on the DVD. I use iMovie HD6 or FinalCut any version.
Also...I tried to split my project in iMovie...but couldn't find a way. I wound up just making a copy and then deleting out a handful of scenes from the copy...I still have the original at 4:12hrs. Is there a way in iMovie to split a project?
I would make a copy and cut away a bit from the end - calling this Part 1 and from start of the other copy Part 2.
OR - there are other programs that can squees in more to a DVD e.g. Roxio Toast™ - BUT this has two cons.
• It costs - to me it was well spent mony as it can so much more e.g. back engineer a DVD to an editable form
• Squeesing in more on a DVD - costs in QUALITY - and as You want as much as it can be - then 90 minuts portions encoded with Pro-Quality encoding and full quality interlasced material from a video-editor that delivers this is the way to get 100% of what DVDs can do.
DVD is as standard only SD-Video - HD not possibly. Then You need Blu-Ray. (also Roxio Toast™)
Yours Bengt W

Some times my new iMacs display start flickring when I starts playing a game. I am very annoyed. I have bought it only 1 month ago. What can I do?

Some times my new iMacs display start flickring when I starts playing a game. I am very annoyed. I have bought it only 1 month ago. What can I do?

A flickering display sounds to me like a hardware problem. Or does this only happen with a specific game? Of course your machine is still under warrantee so you could take advantge of it if you have a local apple store.

Question About Previous iMac vs New iMac Display

I just purchased a refurbished iMac 27" a few days ago. It arrived. I am having trouble visually adjusting to the screen. I've done extensive research on this topic already and have seen others with the same issue. I have heard numerous reasons for the blurry vision, headaches, etc, some attributing to a gap between the glass and the display, or the glare issue. I'm considering downsizing right now to a 21" to see if that will at all help, but I noticed with the new iMacs, they are advertising the following for the display:
"You won’t want anything to distract you from what you’re viewing on these big, beautiful 21.5- and 27-inch displays. And nothing will, thanks to a new display design that reduces reflection by 75 percent. In addition, because the LCD now sits right up against the glass, your content seems to leap off the screen."
75 percent less reflection.
Full lamination has a second major benefit: It eliminates the reflection of light off the LCD panel and off the back of the display’s cover glass. But we also figured out how to reduce reflection off the front of the glass without compromising color quality. Instead of applying an antireflective coating to the glass in a conventional way, we adapted a process used on smaller surfaces like camera lenses and fighter pilots’ helmets. It’s called plasma deposition, and it involves coating the glass with layers of silicon dioxide and niobium pentoxide so precise and so thin they’re measured in atoms. The result: an astounding 75 percent reduction in reflectivity — and vibrant, accurate colors.
Is this new design made to solve the problem I am facing? Thanks for the help!

I recently had an eye examination done, and it came back perfect. This is the previous monitor I used: http://www.walmart.com/ip/AOC-931SWL/13890785
I get that it's completely different, but it didn't cause me any eye strain at all. I also tried calibrating the color, right now it's really warm, with less blue LEDs, and it's easy on the eyes, but it's definitely, still a problem.
I know that some people don't have any problem with them at all, but some others are having the same issue, but I am just trying to figure out if what Apple has done with the change in the new iMac is their solution to the problem.

New iMac display won't sleep?

Hi, new iMac 24", 10.5.7, set screen saver at 5 minutes, and display to sleep at 10 minutes. Screen saver works, but it will not sleep. I've changed the setting, and rebooted, still no luck.
I tried everything from suggestions, with no help. I found that if I turn off "screen sharing" in system preferences, it will sleep the display for whatever minutes I set. I have to leave "screen sharing" on because I have flat screen tv hooked up to watch video files on, and I use iPhone app to control screen, to hit play and pause, etc. It is set up with a password, and only my iPhone is used when I am watching something. Why should screen sharing stop display from sleeping? I've left screen sharing on since I got this, so I can remotely log in with "back to my mac" from the road, and it never stopped the display from sleeping before? I shouldn't have to turn off screen sharing just to sleep the display? Am I missing something?

This is for a Mac that won't sleep.
Here is KB article HT1776 with their tips.
Mine follow;
USB devices and hubs often cause Macs to not sleep or wake quickly from sleep (notably HP printers and scanners, HP all in ones, and Cannon scanners). Disconnect all USB except for keyboard and mouse and try. If it sleeps, add one back at a time testing after each one to find the culprit.
If you've set your Mac to receive faxes, it may not be able to sleep. It might also have a damaged preferences file.
If you use your Mac for faxing, open System Preferences. click Print & Fax, click the Faxing tab, and uncheck the Receive Faxes On This Computer box.If that doesn't work or you've never faxed on your Mac, go to Finder/Hard Drive /Library/Preferences/SystemConfiguration and delete the com.apple.PowerManagement.plist and com..apple.AutoWake.plist files (if your Mac asks, type your admin. password).
If the latter file isn't present in the folder, go to user name(probably your name)/Library/Preferences, delete the com.apple.systemuiserver.plist file, and reboot your Mac.
Hope this helps!
P.S. One member here reported this (Michael Gleason);
"I have had this problem with my IMac G5. It is surprisingly irritating. LaCie's Silverkeeper backup software was the cause. By default it gave itself permission to wake up the computer to check if a backup was needed. Do you have this or a similar program installed which has scheduled activities including wake-up permissions as an option?"
Dave Hamilton provided this link, xlr8yourmac.com, to a member, which addresses failure of deep sleep with some users that updated and added new FireWire and USB card.
Also, here is Apple KB article TA2469 about PCI cards and sleep.
tomhorvat adds this; After few days of messing around I found out that I had desktop background (wallpaper) set to change every 1 minute.
After unchecking "Change picture..." in system preferences (under Desktop/Screen saver), my powerbook went to sleep all by itself.
Tristan Currier noticed this; "I have a Canon printer(shared) and my imac would not sleep. I opened up printer/fax in system prefs and noticed it said the printer was in use when it was off. Opened up the printer queue and noticed about 7 pending documents. Deleted them all and now it sleeps.
Check the printer queue!"
Allan Jones says "sometimes there is Network activity: launch System Preferences > Energy Saver > "Options" tab and uncheck "Wake for Ethernet network administrator access."
Good Luck!  DALE

New iMac display on/off

Does the new iMac have an on/off button for the display that is separate from the on/off power button for the iMac itself?
It would be nice to have the ability to turn off the display, when not in use, without having to powering down the iMac.

Sleeping the entire machine is one thing. Sleeping the display is a separate issue.
It seems there's currently no way to PERMANENTLY turn off the display backlight on an iMac. Setting a display time-out in the energy-saver settings or Ctrl-Shift-eject is supposed turn off the backlight, but if you have applications running on the machine, the display will turn itself back on again after a few seconds. (Try sleeping in a room with an iMac display on. Even displaying a black jpeg with the brightness turned down, you'll need to physically cover the screen!) The backlight will normally power down properly when there's nothing running on the machine, but if the machine weren't doing anything, I'd just sleep the whole machine, not just the display!! I want to sleep just the display/backlight when there are time-consuming applications running in the background, i.e., if the machine is encoding, running backups, syncing with cloud/server drives, etc.
This thread shows many other people having the same problem:
http://mac.elated.com/2007/02/02/why-cant-you-turn-off-the-screen/
It seems this has been a problem for well over a year and I've not even seen Apple acknowledge the issue. IMHO, not being able to leave applications running with the backlight turned off is a critical design flaw. If I'd known this in advance, I'd have bought a Windows PC Now regretting my iMac purchase...

Question about the new IMac display 2012 and pollution

The IMac late 2010 there is the problem that the fan behind the screen and glass environment pollution such as smoke, candle soot, heating dirt etc fans were absorbed and resulted in contamination streaks on the inside of the glass cover.
A new display technology is applied to the new IMac in 2012 and thus achieved a higher density of the display. Can Apple confirm that with this new display, the old dirt from the inside of the glass are excluded and will no longer occur?
Thank you for answer

Good question, but you're not talking to Apple here, just users like yourself, so I doubt you'll get a definitive answer.

Why don't new imac display driver support rotate into portrait mode

why don't new 24 in imacs support display rotate into portrait mode? they have ati radeon HD 2600 chipset!

OK - I figured it out. Apple's 10.4 display driver does not externalize the rotate parameter for the new IMAC alum 24inch display - even though the ATI video card supports rotation.
However, the SwitchResX utility (search on google) will switch the display into rotate modes 90/180/270. I tried it and it works in 90 degree rotate.
Once you install SwitchResX, you have to do 2 steps. First, open the SwitchResX control panel and under its Menus tab, further enable its taskbar widget to allow "Display Orientation" settings. Second, then use SwitchresX taskbar widget (now displaying a new "Rotation" parameter setting for Standard - 90 - 180 - 270.
In addition (obviously ... for safety reasons) you will probably want to attach the device to a VESA standard display mount that allows safe physical rotation of the IMAC. Apple sells for $29 the VESA Mount Adapter Kit for 24-inch iMac. This will allow attachment of the IMAC to a VESA mount. (I am now researching VESA mounts).
Cheers!

Brand New iMac Display Anomalies

Hello,
Thanks in advance for any insight.
Just got a new imac and I'm starting to see weird display issues spring up randomly:
- Menu items randomly fade on main osx tool bar
- UI window drop shadows become pixelated
- Slight flickiering occasionally.
- UI menu items, when selected show mulicolored/banded distortion.
iMac 3.1 GHz Intel Core i5 with 16gb of ram. Video card is AMD Radeon HD 6970M 2048 MB. 10.7.1
Thanks!

Jer,
With due respect you shouldn't be looking for advice on a help forum with that type of issue on a brand new machine. You should be in touch with AppleCare immediately, if you haven't already purchased AppleCare you have 90 days of free phone support, that should be your first step. You can find the number for your area in your owners manual.
If you bought the machine directly from Apple you have 14 days to return it for either a refund or exchange. If you bought it from another retailer you have to work within their policies for a refund or exchange. Either way you still have the 90 days of AppleCare support and need to begin using it today.

Is my new iMac display a lemon?

I've had my new 27-inch iMac now for some three weeks, it being a customised one. One of the very first things I noticed about it following delivery was that its display was rather blurry. I've hitherto been used to using a high-quality 24-inch 1920 X 1200 res monitor in a self-built Windows system.
Now, my eyesight's certainly not as good as it used to be, so I began to wonder if this was just due to my eyes. On every recent visit to a friend's house I'd always remarked at the pin-sharpness and clarity of her three year-old 27-inch iMac running Snow Leopard. My friend paid a return visit today, to see and discuss our respective machines and one of the first things she noticed was the lack of sharpness on the display of mine. Could it be that there's something genuinely wrong with mine? Are displays on 27-inch iMacs set up for sharpness in the factory and therefore could it be that I've ended up with one that's poorly adjusted in that regard?
The irony is that I've come from a Windows machine in which I've been using a top-grade NEC monitor display, one which has its own sharpness control, among many other adjustments, and that monitor's display is ultra-crisp. There's of course no such hardware-based adjustment available to the iMac user.
Ironically, I'm a Photoshop user, trying to produce high-grade prints. I'd hoped to transfer my photographic work in due course to the Mac but clearly with the iMac's display being so blurry I'd never be able to judge my images for clarity or be able to add additional sharpness.
I've wondered whether this has been a case of 'the luck of the draw' as regards the graphics chip used on the iMac's motherboard. I've checked with my friend and she's got the ATI Radeon HD5670 chip in hers, whereas mine's the NVIDIA GeForce GT755M. For the sort of overall customisation I wanted, this 755M was unfortunately the only option available. Before buying the iMac I'd considered a Mac with a separate monitor instead but gave up the idea due to lack of space for it and the extra expense. Nonetheless, I would have expected the 755M, being a newer chip, to have been at least as good as the HD5670, if not better. But it seems not. Have I just got a lemon, or is there some hidden sharpness adjustment that I've not yet found? I discovered a setting for smoothing out text and experimented with that but it made no perceptible difference to the overall sharpness of anything onscreen. With the size of text in some windows/captions being fixed and some fonts that Apple's chosen to use being quite small (10pts and below), I'm now struggling to see text-based captions and dialog boxes clearly.
This isn't a case of a wrong screen resolution being chosen by me. I've definitely got the display set to its native resolution.
From the outset, the colour rendering (calibration) has been pretty poor too. Black level is truly bad too, and is especially noticeable on a customised Apple screensaver with supposed black background that I've chosen to use. My long experience with highgrade photoprocessing made me notice those colour aspects immediately.
Thus far I've been judging this just on general rendering, not on any test images or anything imported from the Windows machine, so I don't think I've been trying to compare apples with pears. I've played around a bit with the built-in calibrator on the iMac but it's about as bad the old Adobe Gamma calibrator that I stopped using in Photoshop/Photoshop Elements many years ago. That's not mattered too much, though, as I own a couple of X-Rite colorimeters and have intended to download and use the calibrator that X-Rite's written specifically for the Mac. That should bring the colour rendering onscreen spot-on - but of course that won't affect sharpness.
Incidentally, I'm for the present still on the initial release of Mavericks. I've yet to update to 10.9.2.
Has anyone else found the screen of their 27-in Mavericks iMac blurry? This is clearly not a case of bad personal choice, because the same model of iMac that belongs to a friend is definitely superior in this regard. The only difference we can point to is the graphics chip used.

Yes.

New iMac display problem(?) - weird colors and grain

Hello,
I'm a fresh mac user, made the switch this monday (August 27th) when my 24" iMac 2.4GHz C2D arrived. After using it for a while, I noticed a handful of dead pixels, and a semi-bright green stuck one. I thought I'd wait and see how disturbing I would find them before raising an issue about them.
Well, yesterday I decided to make my first backup of the whole system to my external 500GB Lacie drive (connected with FW800) using Super Duper!, which to my understanding is a reasonably sturdy and reliable backup application.
During the first backup iteration I started to notice some alterations in color in the top middle part of the display. I then returned to whatever I was doing (not on the mac, I had no other applications running, just Super Duper!), and after a while took another look at the display. The weird colored area had expanded, and the whole display had become somewhat grainy. Also, the backup process had slowed down quite a bit (from ~30MB/s to ~7-8MB/s).
So I cancelled the backup operation and logged out and back in again. No change. Then I restarted the whole system, which booted just fine, with none of the aforementioned problems. Even the second backup iteration went without problems.
Still, it's a new (and with my budget, quite expensive) computer, and if I get this kind of problem during the first week, I cannot continue using it happily in the fear of these problems reoccurring time and again.
I took a couple of pictures of this, one during and one after the problem. The quality of these are quite lousy, they're taken with my Nokia 9500 Communicator.
During the problem:
http://iki.fi/aita/imac/01notok.jpg
After rebooting:
http://iki.fi/aita/imac/02_ok.jpg
The images are taken in the same light conditions, but from slightly different viewing points. Note: The first image does not present reflections, it's how the screen looked (actually, in real life it looked somewhat worse)
What do you think?
Could this be a driver related issue or have I received bad hardware?
My drivers and Apple software should be up to date (at least OS X informs me that everything is, and I haven't found newer graphics drivers anywhere).
If anyone has had the same or related problems or know how I should proceed with this matter, I would be grateful.
Thank you in advance!
-Aidan from Finland

A few people, myself included, have experienced the same thing. Check these threads: http://discussions.apple.com/thread.jspa?threadID=1082181&tstart=15
http://discussions.apple.com/thread.jspa?threadID=1100912&tstart=30
http://discussions.apple.com/thread.jspa?threadID=1090395&tstart=60
So far the only fix suggested has been to call apple and get a replacement. I'm still.....still waiting for mine to make it slowly across the ocean from China, so I don't know how the new one is working. I'd call Apple and request a new one.

So, what's the bottom line about these new iMac displays?

My MBP needs repair again, and while waiting for it to be picked up by Apple, fixed and returned I've revived my even older PBG4, running really slowly off an external USB 1 HD.
Since my work depends on using my Mac daily, I was thinking of buying a new computer and using my MBP for a backup.
The prices on the 21.5" and 27" iMacs are good. And they look beautiful when I saw them at Yodobashi Camera in Akihabara. A new 15" or 17" (like I have now) MBP is really too expensive for me right now.
I have had very bad luck with Mac purchases. Almost every one I've ever bought has needed repair - usually as soon as I brought it home. And now I'm reading all these messages about the display problems. Also, the 27" versions seem to have a 2 week delay on orders (though the 21.5" ones are available now.)
If my purpose is to quickly get an affordable Mac this week so I don't have to labor through using this old PBG4 while my MBP is out, are the iMacs ok? Or are the display problems almost universal?
It's sometimes hard to tell since these forums are, after all, a place where people come to discuss problems!
Any opinions?
Thanks,
doug

Thanks for all your replies, people. And hello to you, kguy!
I never even read about broken pixels on the iSight camera. Something else to worry about!
There are some things that bother me greatly about my display and I will argue to the ends of the earth to get an exchange if they happen. The main thing for me is broken pixels. On my MacBook Pro (late 2006) I had 1 bad pixel and it was driving me to distraction and I argued until they exchanged it.
On the other hand, at the same time, LOTS of people were posting about "uneven illumination" problems with their MBP screens and posting lots of photos and there were a lot of threads about it. I suppose if I looked hard enough, after seeing what they were talking about, I could probably see something similar in my MBP screen, but it honestly never bothered me.
But broken pixels truly drive me to distraction.
I haven't seen this "yellowing" thing at any of the floor models at Yodobashi Camera. But it could be because of the comment in this thread about having to look at the display at a severe angle to see.
I've also experienced what kguy has experienced about support in Japan. There is a general reluctance to admit that there is a problem and they will insist that things are "within acceptable range" (to whom?), but then they find some other excuse to actually go ahead and do the repair. It's like they don't want to set a precedent for other people, but they want to resolve the issue and not leave an unhappy customer. If all else fails with Apple Japan you can nicely say, "OK. Thanks. I guess my next step is to talk with the consumer affairs agency." At that point they inevitably say, "Please hold a moment" and come back with a resolution to your problem.
I've had problems, usually out of the box, with every single Mac I have ever purchased except one - my iMac G5 (long since sold at an auction site). Not a broken pixel, not a single problem. I loved that machine, except was upset that it was basically obsoleted 3 weeks after I bought it when they came out with the Intel versions!
Anyway, I might go over to the store and see if I can see this "yellowing" problem people are talking about. Like I said, I didn't notice it before.
doug

My eyes strain badly with the new iMac display - 2014

I recently bought a 2013 iMac 14.2 to replace my 2007 iMac 7.1.
I immediately noticed that my eyes were straining very badly in front of the new screen. No matter how I tweak the adjustments, I can't bear to look at the screen long enough to do any significant work.
Since I still have the old iMac in the same room, I can easily compare by just switching desks. With the old one, no problem. The moment I sit in front of the new screen, my eyes start aching and watering. It's not a question of contrast, brightness, or any adjustable parameters that I'm aware of.
I checked on the Net, and a significant number of other people report the same type of issues. I have not found any solution, nor any explanation.
I remember that in the days of the CRT monitors on PCs, I had to adjust the refresh rate as high as possible in order to avoid headache and eye strain. Anything 60Hz or below was unbearable.
Is there a similar issue with the LED backlighting?
Does anyone have an in-depth knowledge of the specificities of LED-backlit screens, such as wavelength, variation in light intensity/flickering/refresh rate, etc.?
There is a technical explanation and - hopefully - solution, and it's not "all in your head", "get glasses", "blink twice and stare at the opposite wall for one minute"...

Calibration affects the color, not the refresh rate, and I'm pretty sure that this is an issue of refresh rate.
Even though LED/LCD screens do not have the very noticeable flickering of a CRT when refreshing the image horizontally, there are still refresh frequencies used.
There is no direct access to these settings, and I wonder if there is a software out there that gives you access to the full display/GPU parameters.
My GPU is a NVIDIA GeForce GT 755M.
As I said earlier, there IS an issue here (other people are affected), and there IS a solution somewhere. Besides the fact that Apple should definitely look into it and come up with a permanent fix (like changing the default settings, or having a user-configurable display) I'm sure that users with the necessary knowledge will be able to work out a solution.

New imac displays horizontal grey bars and green pixels on startup and then freezes on a light grey screen

This is happening on a brand new 21 inch imac, all new specs released a few days ago.
This happened the first time I started up the imac straight out of the box. The screen displays alternating light and dark grey bars with green pixel specs all over it. The apple symbol and and loading symbol are visible too - but it then goes to a light grey screen and freezes.
If I manualy restart it will then startup normaly but will do this next time I startup the machine from a cold start.
Does anyone else have this issue. This is my first mac and it doesn't seem acceptable to me. I think I've been sent a dud!
Any help / opinions would be helpful. Cheers

I wouldn't try to solve this issue by troubleshooting a brand new machine. My personal policy is if an electronic device is malfunctioning out of the box, I return it for a replacement. We're talking about an expensive purchase and it should work, but even with stringent quality control a small number of products will fail out of the box. You didn't mention whether you ordered it online or purchased it at an Apple store. If you can, get a new machine at an Apple store and take advantage of the free setup. An Apple salesperson will start it in the store, so you'll know before leaving if it's good.

New imacs display question

Are there controls for contrast and backlight, or just only brightness. thanks

No you haven't, you've only been as far as display, you have to click on Color where there is no Brightness slider, you can adjust and calibrate the color/contrast profiles in there.

New iMac Display Sizes

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