24" iMac - How many colors?

The specs. for the 24" iMac display state simply "millions of colors." At the same time the specs. for, for example, a 23" cinema display state very specifically "16.7 million colors" (which I believe would be 24 bit color). So my question is, specifically, how many colors will the 24" iMac display really produce?

Magnitude15 wrote:
Do you know (or does anyone else know) how to tell if a monitor uses the 8-bit S-IPS panels?
Is there a label on the monitor or is there a software test available to determine this?
There are several possibilities:
1) tftcentral.co.uk has an extensive database that lists LCD panel part numbers
for many popular monitors. They also have a listing of panel specs -- sorted by
manufacturer's part number.
2) The monitor's "viewing angle" specs are a strong clue. 160 degrees or less is
a fairly sure sign of a TN panel. 178 degrees generally indicates an S-IPS panel;
panels in the 170-175 degree range are likely to be S-PVA or a similar type of
high-quality panel. If it's not TN, it's almost certainly an 8-bit panel.
3) For iMacs, you can download a copy of SwitchResX.app and interrogate the
panel type with "Export DDC." The last few lines of the DDC information block
indicate the manufacturer's part number of the panel -- and with that, you can
find the specs on tftcentral.co.uk.
4) Google. Online reviews by Xbitlabs.com, tomshardware.com, tftcentral.co.uk,
etc. often reveal the panel type.
Looby

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HSB Color Space Question - How Many Colors Are There In Photoshop

Hello guys, I have a sort of basic question that I have been trying to figure out for a few days.
I am trying to find out how many colors there are in the Color Picker when the Hue radio button is selected.
I know there are 256^3 RGB (#Hex) colors, and I am trying to find some relationship when I am coloring with HSB color space in Photoshop.
It just confuses me because the Hue slider goes from 0-359 and the S and B goes from 0-99...
So how many HSB colors in Photoshop are there? Am I missing out on some colors by using HSB color space in Photoshop as oposed to using RGB?
Are there the exact same amount? Are there more and there are duplicates in HSB space mode?
Thank you all for all your help, much appreciated
Travis

misterfowly wrote:
I know there are 256^3 RGB (#Hex) colors, and I am trying to find some relationship when I am coloring with HSB color space in Photoshop.
It just confuses me because the Hue slider goes from 0-359 and the S and B goes from 0-99...
So how many HSB colors in Photoshop are there? Am I missing out on some colors by using HSB color space in Photoshop as oposed to using RGB?
The deficiency of such mathematical models is that they do not take into account noise and human perception. In an 24 bit RGB space (8 bits per channel) there may be 16 million colors, but this assumes that there are 256 discrete levels in each color channel. You could increase the number of colors by using a 48 bit space. In practice, noise will reduce the number of discrete levels, and this will vary with the camera and ISO used in that camera. For example, consider the Nikon D5000 as evaluated by DXO. At base ISO the camera can resolve only 21.8 bits of color information and this decreases to 15.6 bits at an effective ISO of 2079 (camera ISO setting of 3200).
http://www.dxomark.com/index.php/eng/Image-Quality-Database/Nikon/D5000
Then you have to consider how many of these colors can actually be differentiated by the human visual system. If you can't see a difference, it really doesn't matter.These differences are difficult to quantitate. One such effort uses MacAdam ellipses shown in this Wikipedia article on a CIE 1931 xy plot. How many of these ellipses are contained in the CIE xy space? The DXO site has similar ellipses for real world camera images.
http://en.wikipedia.org/wiki/MacAdam_ellipse
See this RIT FAQ for a more sober real world analysis. The actual number of colors is in the millions, but likely not 16 million.
http://www.cis.rit.edu/mcsl/outreach/faq.php?catnum=1#219
In a real world situation, I would not be overly concerned about differences between the RGB and HSB spaces, but one could increase precision by using a 48 bit space.

Have 4 iMac , how many copies of Lion will I require?

have 4 iMac , how many copies of Lion will I require?

You're only expected to pay for one...you can then download and install to as many computers as you have an account on.

How many colors can L*a*b* describe?

OK. So this is what was keeping me up at 3am this morning
RGB numbers can describe over 16 million colors in a 24 bit file. But looking at the L*a*b* numbers in Photoshop, that space can only describe just over 6.5 million colors. (L* has 0-100, a* and b* allow -128 to 127)
And LAB supposedly includes all colors, right? Colors outside of a typical RGB editing space. So that would mean even fewer colors to define an RGB space.
So, wouldnt that lead to problems when converting to LAB, or when Photoshop uses LAB as a Profile Connection Space?

Photoshop uses L*=0..100, a*=-128 to +128, b*=-128 to +128
(not -128 to +127). L* is coded in a TIFF by 0 to 255.
Meanwhile I've tested by a brute force counting the number
of available colors in Lab for three RGB spaces:
Define RGB space
N=0
For L*=0 To 100 Step 1 Do
For a*=-128 To +128 Step 1 Do
For b*=-128 To +128 Step 1 Do
Begin
Convert L*,a*,b* to R,G,B
If R,G,B in [0,255] Then N=N+1
End
Print N
The result, number of colors in Lab:
0.832.752 sRGB % almost one million
1.208.912 AdobeRGB(1998) % more than one million
2.659.728 ProPhotoRGB % almost three millions
In simple words: scan Lab by steps 1 and increment
the counter if the resulting RGB values are in the
allowed range 0..255.
Actually, the stepsize was 2 and the total result
was multiplied by 8.
Some more information is here in chapter 18:
http://www.fho-emden.de/~hoffmann/cielab03022003.pdf
Many conversions between RGB and CieLab, both for
8 bits per channel, back and forth, don't do much harm
(they are not 'destructive'), as shown, proved or
pretended by Dan Margulis, author of 'Photoshop Lab'.
I'm sharing his opinion, based on experience by much
practical image processing for offset printing.
Best regards --Gernot Hoffmann

How many colors E5-00 can be changed to?

Is it can be changed color such as 5230?

do you mean the outer fascia or themes
If i have helped at all a click on the white star below would be nice thanks.
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How many memory slots on latest iMac?

Thinking of purchasing iMac 27", 3.4; i5. From what I understand, the memory card access point is in the back, therefore easy to upgrade. How many memory card slots are there? Also, it is recommended at 32 max. Has anyone tried to up that to 64, and if so, any issues. I do a lot of photography with Adobe.
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1. Four.
2. At this point, treat 32GB as being the limit.
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How many different iPods can I sync with my single iMac user/iTunes account?

Good Day to All,
Can anyone tell me how many different iPods & iPhones can I successfully consistently sync/integrate using my one "user account" in iTunes on my iMac? This ist situation:
I have always (and only) synced etc. my iPhone with my one iTunes UID which is under my ONE "User Account" on my iMac. Recently, my elderly folks gave me 2 iPods they have never used. One is a little silver 4GB shuffle (the little guy with a built on "belt clip" & it verbally tells you what song and artist is playing. The other is also an iPod shuffle ( only 1GB), also has the metal "pinch to open; belt clip"; also no display, however it came with a little USB Dock and THIS ONE has all of the user controls on the face of it in a circular patter of course..
To have COMPLETE successful "interaction/integration/syncing" etc (with no issues/complications etc) with my iTunes currently and previously only used with my iPhone, do I have to create two new additional "User Login/accounts" on my iMac (one for each iPod) to have all three if my devices work perfectly fine, or can I just use my same iMac login (UID) & iTunes that I use with my iPhone and have no worries?
(ie: I created my girlfriend her own iMac login UID which she has always used for backing up/syncing etc her iPhone with HER iTunes library etc)
In short, does iTunes have the ability to have multiple iPods & my iPhone under my one existing iTunes account AND using the same single iMac login/UID I've always used with my iPhone?
Obviously, I know I could create an iMac login for my mom's, another for my dad's & create them both their individual iTunes accounts, but they really don't want to have to worry about dealing with all that. I'm teetering between just treating them as my iPods and mixing/adding their limited CD's into my library (again, if iTunes allows multiple iPods etc as explained above..
OR; my other thought would be (again, if one iTunes account can integrate the two iPods as seperate devices and to just create ONE iMac UID login and ONE iTunes account under my dad's name, and use that one account for both of their music, both of their iPods, importing their CD's into the same iTunes library, then when syncing etc. just doing selective transfers/sync's of the specific music for each iPod... Even then, will iTunes be able to differentiate the two as far as backups/restored etc? I think answering my own question as I type due to the cloud... For completely individual cloud interaction/integration, I would def need to create each of them their own iTunes accounts, otherwise they will have all of each other's songs on their devices.. (ie: And my dad def doesn't want to worry about skipping over my mom's Journey or Aerosmith tunes to get to his Willie Nelson and vice versa for example.
(Sorry sooooo drawn out; thinking outloud) I guess it seems obvious that since all their digital music has to be on my iMac, I really should create them each their own iMac UID login as well as their own individual iTunes Acounts to insure cloud services work easily for restores/backups etc...
Thanks for stumbling thru my thought processes here (if I didn't lose ya long ago); I'm exhausted and throwing thoughts at the classroom board to see what sticks.... The best easiest way that is.. (The two aren't always the same obviously!)
Thank you all for your precious time and consideration and most if all; YOUR PATIENCE!! Any confirmation if the options and suggestions are greatly appreciated. You know, gotta take care of the folks & what is the simplest for them as just end users is the most important or they'll NEVER bother with them in the end...
Respectfully appreciative,
DB

You can use as many iPods with one iTunes library as you want.
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HT2513 my iCal calendar that I created with the color green keeps changing to purple. no matter how many times I change it to green, it turns it back to purple. Of course this only happens with iCloud and not "from my Mac". Any ideas?

my iCal calendar that I created with the color green keeps changing to purple. no matter how many times I change it to green, it turns it back to purple. Of course this only happens with iCloud and not "from my Mac". Any ideas on how to correct this? This seems like a trivial error, but it's super annoying.

I called Apple and they said that they know about this problem. It's a problem with iCloud which their Engineers know about. (there was a new iCloud release, hence...) No ETA for a fix yet. I asked that this be escalated so Engineering doesn't put it at the bottom of their fix list. I talked to a Senior Advisor and mentioned to them to have QA check their regression tests as this has happened before to me (the problem just didn't take this long to resolve). I like to use green too for important stuff, so I've resorted to creating a new calendar using the normal calendar green for events going forward. They could have picked another color besides green to have this problem with and I wouldn't have been so upset. ;-)

Before i buy the complete creative cloud, how many computers can i install it on with the one subscription? i have a macbook pro laptop and a iMac desktop, which i both need it on.

before i buy the complete creative cloud, how many computers can i install it on with the one subscription? i have a macbook pro laptop and a iMac desktop, which i both need it on.

Creative Cloud Help | Creative Cloud / Common Questions
"Can I use the software I download from Creative Cloud on more than one machine?
Yes. Creative Cloud desktop applications can be downloaded and installed on multiple computers, regardless of operating system. However, activation is limited to two machines per individual associated with the membership. See the terms of use for more information. Learn how to deactivate a Creative Cloud license on a machine."

How many monitors can you use on a new imac with GEForce 780m?

My husband bought a new 27" iMac with the optional GEForce 780m with 4 gig of video ram. He wants to know how many monitors he can run simultaneously, and at what resolutions. He would obviously be using the Thunderbolt ports to do this. I thought this information should be easily found in the technical specs for either the iMac or the video card itself on the NVidia site, but it is not.

Catherine Gramze wrote:
Ok, rkaufman. Can he use two 4k monitors in addition to his iMac display? He wants to know what his options are in terms of number of monitors and the resolution. Yes, I know which monitor you buy will be the limiting factor for the actual display, but he has not yet purchased these additional monitors. If thunderbolt allows him to run 3840x2160, how many of them can he run at once at 32 bpp? How many if he chooses 2560x1600 instead?
To be honest I don't know how many Thunderbolt displays he can run, I would STRONGLY recommend contacting Apple to ask. You can ask the online store (phone number is in upper right of it's home page) or if you have an Apple Store in your area, making an appointment with a business specialist and asking that question.

How many times can a podcast be heard /$$ .imac space

I understand how many times a podcast can be heard ( based on the size of the podcast ) per unit of space I buy but imac doesn't tell you how much it costs to buy extra units if you want to upgrade to more storage space, ~~ without giving your credit card number first and purchasing the original storage space for $99.
I can't really figure out if it is worth purchasing the space. my first podcast is 67 MB right now with one GB of storage / transfer units, that podcast can only be heard one time.
so I have garage band and can make podcasts but don't have the information I need to move forward to publish my podcast.

I believe your talking about .Mac account that has I think 10Gb of storage. 10 gigs is a lot of podcast nothing to worry about for a few years. As for how much monthly bandwidth you get I don't know but you probably would have to be in the thousands of downloads a month before you come up to any restrictions.

How many iMacs can i register Logic Pro on?

How many iMacs can i register Logic Pro on?
We use Logic Pro at our work. We are using using 6 macs at the moment, i would like to have logic on all 6

Hi
Technically this is NOT the 'legal' case:
https://discussions.apple.com/message/18228781#18228781
CCTM wrote:
Hi
According to the details in this:
http://www.apple.com/legal/itunes/uk/terms.html#SALE
You could well be out of luck....
MAC APP STORE PRODUCT USAGE RULES
Except as otherwise set forth herein,
If you are an individual acting in your personal capacity, you may download and use an application from the Mac App Store (“Mac App Store Product”) for personal, non-commercial use on any Apple-branded products running Mac OS X (“Mac Computer”) that you own or control.
(ii) If you are a commercial enterprise or educational institution, you may download a Mac App Store Product for use by either (a) a single individual on each of the Mac Computer(s) used by that individual that you own or control, or (b) multiple individuals on a single shared Mac Computer that you own or control. For example, a single employee may use a Mac App Store Product on both the employee’s desktop Mac Computer and laptop Mac Computer, or multiple students may serially use the Mac App Store Product on a single Mac Computer located at a resource centre or library. For the sake of clarity, each Mac Computer used serially by multiple users requires a separate licence.
(iii) Use of Mac App Store Products may require sign-in with the Apple ID used to download the Mac App Store Product from the Mac App Store. Mac App Store Products can be updated through the Mac App Store only."
HTH???
CCT

How many ipads can i sync to one iMac?

I am a teacher and our ESL team is considering getting 4-5 iPads for our students and we are wondering how many iPads can we sync to one iMac? I thought it could be potentially much easlier to sync all 5 iPads to one iMac and use this one iMac and its iTunes as our sync station since I am planning on having our team all use pretty much all the same apps with our students...is this possible?

Hi mstaum,
Yes, they can all sync to the same iTunes library. The key is the AppleID that you will be using. Are you planning on using the same AppleID and iCloud account for all users? If so, then you will want to be sure to set up the Restrictions on each iPad to require a Password for purchases immediately, so you can prevent the students from purchasing other apps on the credit card you are using for the iTunes account....
Hope this helps!
Cheers,
GB

Just found Ipad Nano in Big Island Hawaii. Trying to find the owner to return it back. Tell me what is the color, how many songs and your name(its personalize with a name).

Just found Ipad Nano in Big Island Hawaii. Trying to find the owner to return it back. Tell me what is the color, how many songs and your name(its personalize with a name).

I only wish that when I called Apple, they would match the serial number with the owner and give me the contact
Hopefully you left Apple your contact info (name phone #, email address).
Apple would simply pass your contact to the last registered owner. It would be up to the owner to contact you. As Dave mentioned, Apple will not give you any info (except may to tell you it was or was not registered, but not to who). Turn it on once in a while and maybe they have activated FindMyiPad and a message will pop up (don't need to be logged onto the iPad to a message).

How many device can one sync with iPhone? I own a Mac Pro and an iMac desktop. Can I sync with both machines?

How Many devices can I sync with my iPhone? I own a Mac PRO and an iMAC. Depends on where I am, I will plug my iPhone to either of the machines. I haven't sync with either machine yet.

Dah•veed wrote:
Please explain how one would accomplish that feat.
There's not much to explain. When a device is connected, you see the row of different categories across the top: Summary, Info, Apps, Tones, Music, Movies, TV Shows, Podcasts, Books, and Photos. For example, it is perfectly safe to sync one iOS device to the Music category on Computer A and no other computer, and the same device to Photos on Computer B and no other computer.
You might be confusing what I'm saying with one iOS device enabling sync to the Music library on multiple computers. That is a huge no-no and will result in the disaster being suggested. But I am not talking about that, I'm talking about the opposite arrangement. What I am describing preserves category exclusivity. It turns out that exclusivity at the category level, not the computer level, is what really matters.
As long as a device is synced to a given category on only one computer, it doesn't matter which computer it is or whether that computer is different than the ones synced to on other categories. The instant a given category is enabled for syncing on more than on computer, that is where the trouble starts.
KiltedTim wrote:
Trying to do so is asking for trouble. Don't do it. Move the content you need to one machine and sync only with that machine. If you don't, you'll be back here asking how to fix the mess and recover all the stuff you lost...
I will agree that it is something you should only do mindfully. But if you do make sure each category is syncing to only one device, there will be no data loss and no mess.

24" iMac - How many colors?

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