DVI - VGA -Any loss of quality?

Hi,
I'm awaiting delivery of my Mac Pro and am in need of two monitors. I can't afford the Apple displays but i was wondering if quality is lost when connecting VGA monitors via the VGA to DVI adaptor? The reason is i can get two 22" LG L225WS-SF displays for £275 but they are VGA not DVI.
Also is VGA going to die a death or is it with us for a while?
Message was edited by: Mark Thornton

A DVI to VGA adapter won't affect the image quality. It just passes the analog video signals from the graphics board to a VGA connector. For LCDs, DVI can give a slightly sharper picture, but the difference is not always noticeable.

Similar Messages

Any loss of quality with iPhone from 256 to 128 kbps

I have to decompress my iTunes songs for my iPhone as I have them as AIFF.
Is there any loss of quality with the limits of the iPhone if I use 128 kb instead of256 ?
Thanks,
Greg

Greg, I don't think you will notice a big deal of a difference.

CR2 to DNG. Any loss of quality or funcionality?

Hi.
So, the same questions arise with me but I can't get a definitive answer...
1. Adobe Bridge CS3 (and I presume CS4 as well) will "Convert to DNG" upon importing from your card reader. It's a simple checkbox option. Will this function convert 5DMK2 CR2 files to DNG properly or do I need to use the standalone Adobe DNG Converter because only Bridge CS4 will do it right?
2. If I process a CR2 file in ACR and make adjustments, then convert the CR2 to DNG, what happens to my edits saved in the XMP sidecar? Does it come along for the ride or is the XMP file now ignored forever?
3. Are there any features/benefits/downfalls in converting to DNG first then processing it in ACR? Anything that a CR2 file offers that a DNG file does not? Is there an ACR function that is now grayed out or something?
4. Is the quality of a DNG identical to the CR2 file? Same file size too?
5. Will presets I've created in ACR to run against CR2 files also run against DNG files?
6. If I convert a CR2 file to DNG and open it in, say DPP, then make changes such as sharpening and noise reduction, then open that DNG in ACR, are those changes seen or ignored?
7. People have said "Convert to DNG. Who knows how long you will be able to read CR2 files." I'm not sure how this statement holds water -- the DNG format was only released in late 2004. It's not a long-standing standard. I could make the argument that both CR2 and DNG files have an equal chance of becoming obsolete or changing drastically. Thoughts about this?
I've worked with raw files and a 40D for a long time now and my workflow is great for me: Import into Bridge --> Edit in ACR. If I get the new 5DMK2 I would hate to lose this functionality and I'm willing to upgrade to CS4, but why bother if CS3 Bridge's "Convert to DNG" function will convert it upon import, or if the new DNG Converter will do a whole directory in a few minutes... but I need to be sure that I don't lose any quality or functionality by doing this... and, if I decide to convert a whole year's worth of CR2/XMP files to DNG for long-term compatibility reasons, I need to be sure that all my XMP edits come along for the ride. If not, that's hundreds of hours of work gone... I might as well export to hi-quality JPG.
Thanks,
-Dave

> It's a shame that an edited CR2 file contains the edit information embedded in the file instead of within an XMP DPP can store the adjustment in a parameter file, but other raw processors would not recognize that. > Many times I'd like to use, say, DPP to apply NR and Sharpening, but I'd like to use ACR for the rest You seriously misunderstand how this works. We are talking about i parameters for the raw processor. Here is a crop from the XMP parameters: <PRE> xmlns:crs="http://ns.adobe.com/camera-raw-settings/1.0/"> <crs:RawFileName>40D01784.CR2</crs:RawFileName> <crs:Version>4.5</crs:Version> <crs:WhiteBalance>Auto</crs:WhiteBalance> <crs:Temperature>2850</crs:Temperature> <crs:Tint>+21</crs:Tint> <crs:Exposure>-1.20</crs:Exposure> <crs:Shadows>1</crs:Shadows> <crs:Brightness>+10</crs:Brightness> <crs:Contrast>+50</crs:Contrast> <crs:Saturation>+15</crs:Saturation> <crs:Sharpness>50</crs:Sharpness> <crs:LuminanceSmoothing>0</crs:LuminanceSmoothing> <crs:ColorNoiseReduction>0</crs:ColorNoiseReduction> <crs:ChromaticAberrationR>0</crs:ChromaticAberrationR> <crs:ChromaticAberrationB>0</crs:ChromaticAberrationB> <crs:VignetteAmount>+20</crs:VignetteAmount> <crs:VignetteMidpoint>50</crs:VignetteMidpoint> <crs:ShadowTint>0</crs:ShadowTint> <crs:RedHue>0</crs:RedHue> <crs:RedSaturation>0</crs:RedSaturation> <crs:GreenHue>0</crs:GreenHue> <crs:GreenSaturation>0</crs:GreenSaturation> <crs:BlueHue>0</crs:BlueHue> <crs:BlueSaturation>0</crs:BlueSaturation> <crs:FillLight>0</crs:FillLight> <crs:Vibrance>+15</crs:Vibrance> <crs:HighlightRecovery>28</crs:HighlightRecovery> <crs:Clarity>0</crs:Clarity> <crs:Defringe>0</crs:Defringe> <crs:HueAdjustmentRed>0</crs:HueAdjustmentRed> </PRE> LuminanceSmoothing and ColorNoiseReduction are the parameters for noise reduction. If DPP would do the parameters in this or some other but metaformat, ACR or other raw processors could interpret the setting. However, the result would be ACR noise reduction. In order to get the DPP noise reduction result, you have to convert the raw file in TIFF or JPEG by DPP.

How to transfer pictures to a CD without any loss of quality

I made some adjustments in Aperture, pictures were shot in RAW and wanted to put them on a Cd for transfer to a relative.
I dragged and dropped and the size reduced from RAW 13-19 mb to 600k jPeg.
I do not have a problem with the jPeg, actually my relative prefers it but I do not want the large reduction in size.
I just got Aperture so please forgive me if I am missing the obvious.
Greg

I do not have a problem with the jPeg, actually my relative prefers it but I do not want the large reduction in size.
To be honest you shouldn't be concerned with the size of the image you're giving to your friends. What matters is the quality of the image for use they will put it to. If you can get that in a file thats 100 bytes so be it, if that doesn't give them the quality they need then of course increase the quality. Bit always be thinking in terms of image quality for the intended use not file size.
So are the files you're producing of adequate quality? If not there are two ways to go about increasing the quality.
One is to increase the quality of the previews that Aperture is producing. This will allow you yto continue to drag the images out of Aperture and not have to go through the export process. To increase the preview quality go to Aperture->Preferences->Previews. You can adjust both image size and JPG compression. Remember changing the preview settings only affects previews made after the change. Previews already in Aperture will not be upgraded . To upgrade current previews you need to force Aperture to re-create them. See the Photos->[Delete/Generate] Previews.
If you can't get the quality you need with previews then you will need to export the images. Then you have complete control over all aspects of the exported image.
Either way remember its the quality of the image not the files size that matters.

Import(?) then export pdf's - loss of quality?

Hi-
A complete newbie to printing. I prepared layouts in my database (filemaker pro), exported as pdf. They look great when opened in Acrobat Pro, and print nicely. Now I find out most companies want pdf from In Design or a similar program. If I open pdf's in In design, can I then export them like the printing company wants without any loss of quality? This would all be grayscale, but has a numver of images (it's a book from a specialty dog show).. The layouts are just what I want, with tables that were finicky to get right, and data straight from my database. I would HATE to start over! Any help / ideas would be deeply appreciated!
BTW - there is no way to mimic pdf''s from In Design in Acrobat Pro?
Many thanks in advance.

Interesting question, there's two elements to it, firstly what you assume 'most companies' want and secondly what can Indesign do to help you.
Firstly, all companies are different and have different workflows and requirements. The simplest thing to do is to send 'the company' your PDFs as you have them now and ask them to make sure they are suitable. If not, or if this won't work for you move on to the second question...
Secondly, yes, Indesign can do that, and I for one frequently use Indesign for just that purpose, refrying PDFs from multiple sources to a more consistent standard. It depends on what you are using the PDFs for as to what export settings you use but Indesign is very good at this, with the exception of the greyscale part you mentioned. Others could offer more detailed advice but you have to use Acrobat Pro to make sure this is working properly and apply fixes as necessary. Personally if greyscale id needed I use the 'TouchUp Object' tool and a plugin called Pitstop but there are other methods too, let us know your specific problems, if any.
One very useful tool when putting PDFs through Indesign like this is Scott Zanelli's MultiPageImporter, highly recommended for placing more than one page, and sometimes even when placing only one page too!

Iphoto loss of quality

Hi,
We are importing photos into iphoto directly from a Canon camera. The file format of the camera is jpg.
1. Is there any loss of quality when importing them from the camera and exporting them onto the Hard Disk when using iPhoto to achieve this.
2. We rotate some of the photos using iphoto before exporting them - we noticed that the file size reduces - is there a loss of quality because of this?
Many thanks,
L&Z

If you're looking for a lossless rotation of those portrait photos tryXee.
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've created an Automator workflow application (requires Tiger), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. It's compatible with iPhoto 08 libraries and Leopard. iPhoto does not have to be closed to run the application, just idle. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.

Macbook mini-dvi -- VGA projector problems

Hi
At the school i teach at we have problems hooking up our new macbooks to one of our projectors. We use a mini-dvi --> VGA cable to hook up the projector. The mac recognises the projector and it gets listed under screens, the resolution also changes. But no picture is beeing projected by the projector.
If we use a mini-dvi --> s/video/rca cable it works fine, but the quality of the picture is too low. The projector works nicely with the older macs we have, wich use the mini-dv --> vga cable.
Any toughts on what may be the problem, or what we could try?

I am having the same problem. I have to do powerpoint presentations at college and it was so embarrassing to go up there and my macbook not sync up. It use to work. I even bought a new adapter. It did not fix the problem. All the windows laptops were able to sync up to the projector but mine did not. This one one of the main reasons I bought a macbook. I need to take my work to school and connect to projectors. I am using the mini-DVI to VGA adapter. There appears to be no physical damage. When I click detect displays nothing happens. Now I have to redo everything on windows. Please, I hope someone has a fix for this. I am using the following; 2 GHZ Intel Core 2 DUo, 1 GB RAM, Mac OS X 10.4.10

Dual Monitor Hook-up, DVI/VGA/HDMI?

I think it's time to retire my aging samsung 22" and buy a few 23" LED's to replace it.
My graphics card only has DVI out (x2), and the 3 monitors I'm looking at do not have dual DVI (either dual HDMI and DVI, or DVI/VGA/HDMI), so I would need adapters from DVI to HDMI/VGA. I'm guessing that's all handled at the adapter/hardware level, so linux should have no problem finding them, but if I'm hooking 1 up natively to DVI, and the other through an adapter (or both through adapters), will I notice any quality difference between the 2 monitors?

Cyrusm wrote:
Personally I use my HDMI monitor as my main monitor and have the secondary monitor attatched to VGA. I can't really tell the difference in performance between the two, however I never work with anything terribly graphics intensive.
and it hurts to hear that my Samsung 22" is also 'aging' of course so is my 17" secondary I guess maybe that'll be my next investment...
Sorry about the aging comment
But this is the answer I was looking for! I don't want to have 1 monitor hooked up via HDMI and the other VGA and be able to see a noticeable difference between the 2. I don't do anything graphics intensive either.
Thanks for all the responses!

Mini-Dvi - VGA Problems

I just bought a mini-dvi to vga adapter from apple but can't get it to work with my philip's hdtv. It works perfectly when plugged into my pc monitor, but when going into the tv I just get a blank screen with "no signal detected". I've using a VGA to DVI convertor on the cable going into the tv, I know I should have gotten a straight mini-DVI to DVI cable, but I wanted to be able to use VGA as well.
My old iBook worked perfectly, but it detected my tv as a VGA monitor, whereas the MacBook detects it as a HDMI display. Is there any way I can force OS X to set my TV as a VGA display? Or is there any other fix around?
My tv is DVI-I in I think, which I read elsewhere has caused some conflict with mac mini's.
Thanks in advance...

Well, I just got myself a mini-DVI to DVI adaptor so that I could connect it to a DVI-VGA adaptor and on to my VGA (Apple) CRT.
I may get a DVI-capable monitor in the future, so it seemed like a good future-proofing exercise. Unfortunately the DVI plug has four more pins (around the flat-blade pin) than the port on the mini-DVI adaptor has holes!
so it doesn't fit.
DRAT! I have been waiting for the DVI adaptors to come into the Apple Centre for a couple of weeks, and now it's no good! Grrr.

Mini dvi-vga problem - Need help

When I connect my mac mini to a 32 inch Samsung HDTV via a dvi-vga adapter, the source is not recognized. I jsut get a black screen. However, when I connect it to the HDMI port, it works great. But, I wantto use the HDMI port for the Television source, not the computer source.
Any ideas?
Thanks

Did you get the mini-DVI to VGA adapter from Apple? Are your other cables okay?
Perhaps a mini-DVI to video adapter would be a better choice for you.
~Lyssa

Editing iPhone video without loss of quality

I've a stack of video clips taken from my iPhone 3GS which I want to simply stitch together and edit down a little WITHOUT loss of quality.
All I want to do is import, crop and stitch them together, thus create a single file *with no change in image quality*. (for smaller projects, I used to do this kind of thing in older versions of QuickTime Pro.)
What is the best procedure for this in iMovie 09? Indeed, can it be done?
My understanding is that ANY re-compression will result in artefacts and loss in quality.
Further info...
I've managed to import the clips ok (making sure any options to 'optimise' anything are turned off) and edit them together in iMovie. This way, the import is fast and the images seems untouched, so I assumed no conversion has been done on the video (I think I'm wrong here?)
(Setting the project aspect ratio to 4:3 was the other gotcha.)
Having sorted the above out, and done some editing, I now want to export to a single file. I understand the iPhone codec is H264. However, when I export (via quicktime) and select H264, it wants to re-compress. I worry this will loose quality.
When I export with lossless compression, of course I get a 150G file - owch. The sum total size of the originals are 2.63G
Any suggestions?

iMovie will re-compress. To me this is a small price to pay for having an edited movie. Personally, I would optimize, but if you keep your movies simple, you will be OK without. If you decide to apply image stabilization or speed changes, you will definitely need to optimize. Optimization resolves the highly compressed h.264 frames into full frames in Apple Intermediate Codec.
While the quality loss you may experience is not likely to be visible to the naked eye, if that is your only criterion, then avoid iMovie and follow QuickTime Kirk's advice.
Here is a [sample video|http://vimeo.com/7093442] that I made in a Dentist Office. You can see what the re-compression looks like. In this case, I did not optimize.
Editing in iMovie is non-destructive, so you can try it both ways (imovie and QuickTime Pro) and see if you can tell the difference.
Message was edited by: AppleMan1958

Imported & Exported HD Video Imovie '11 Big Loss of Quality

This is plain outrageous i noticed this flaw about a week ago.
I noticed how iMovie '11 degrades the quality of any HD Content whether it be a an Imported file or card or camera regardless. And Yes in the Prefrences FULL QUALITY is selected under the video tab. The Exported Content is the same Poor quality under highest settings quality FULL 1080P as imported even if exported a Quicktime X file H264 compression. The bottom line the imported content looks horrible in iMovie '11 it exports horrible too under the highest settings.
I tried Final Cut X on the other hand and It was Great no loss of quality there via the comand import Imovie Project. But I did notice how Final Cut X messed up on some of the transitions and the titles were off but that was an easy fix
Something has to be done iMovie '11 When Are you going ship '12 or '13

Welcome to iMovie Discussions.
(..Sob!..) If you can bear the anguish and argument and technicalities and angst, Search for "Steve Mullen" and follow any of those threads: you'll find all manner of description about what's happening, what's going wrong, how to correct it, whether it can be corrected ..and so on, and so forth..
(See this thread: http://discussions.apple.com/thread.jspa?messageID=11846858&#11846858 ..)
I've never noticed this problem: but when I HAVE seen poor quality - by adding an iMovie '09 title onto pristine DV footage, like this:
..I've followed Karl Petersen's instructions about how to change it into (apparent) top-notch quality like this:
Karl suggested opening the exported movie in QuickTime, and pressing ⌘ and 'J' and ticking the 'High Quality' box in the lower-right corner of Video Settings:
See here, and click on 'Start Slideshow'.
Steve disagrees, I think, with this, and says that this simple fix doesn't work.
Try it, and see if it works for you.

How can i use the DVI-VGA adaptor under this particular circumstance?????

I got a LCD only has DVI-I port, while as u guys has noticed, the MBP only got DVI-I too. So, my first thought is to get another DVI-VGA adaptor. What i'm doing is to hook up the VGA port then plug each DVI port to LCD and MBP. Well, the problem comes out that MBP was able to indentify the Monitor but no image apears on Monitor. How can i solve this problem? Or do i need to buy any other accessaries to configure my MBP in order to make it work with the **** Monitor!

Right. You don't need a DVI-to-VGA adapter to connect DVI-to-DVI, obviously. The included DVI-to-VGA adapter is not meant to connect to the external display/projector, but merely to give you the proper connection to connect the VGA cable of the display/projector. I give a lot of presentations, everywhere I go there is a long VGA cable (at the podium, conference table, etc.); the short adapter is nice because I'd rather not carry a long cable with me...

Waiting to buy ... do I .. DVI, VGA or HDMI? (Samsung 23" TV)

Hello,
I'm currently very near to buying the basic Mac Mini model, customized to include;
1.83GHz Intel Core 2 Duo
120Gb HHD
1Gb RAM
My question is, I have a 23" Samsung HDTV and the ports on the back are HDMI and VGA with audio. I know the Mac mini comes with a DVI to VGA adapter but am wondering which is better for my situation, and why?
Also what type of cable would I need for the better option? Currently I have none. I have a 3.5mm jack audio cable, which has the same male connector on both ends. Would I need any of the following to get setup:
DVI to VGA cable?
VGA to VGA cable?
DVI to HDMI cable?
I'd rather not use Apple's adapter, if possible. I've found straight connections to work better than through an adapter of any kind.
I'm trying to get everything ready, so that when it does come, I can simply plug in and use straight away, without having to go out and buy a cable before hand
Thanks for your help and advice,
R-Fly

Since no-one has replied so far, I'll throw in a thought or two:
It might help if you post the model number of the TV, such that those with experience of it, or the opportunity to do some digging, can let you know whether the HDMI option is suited to your needs or not. However, you can be pretty sure that the VGA connection will work just fine, since by far the most common complaint has been with minis which do not correctly get ID from the display when connected via HDMI.
In your situation I wouldn't be so much concerned at using an adaptor - there's no reason to think they would not work perfectly well as long as they are firmly connected. Certainly I've used both DVI/VGA and DVI/Composite adapters with Mac minis for quite some time and not experienced any problems.

Problems displaying images on tv using dvi-vga cables

I connected my macbook to a Samsung hdtv via dvi-vga cables. The picture looked great on the tv, however it only displays my background. The tv does not display any open windows, desktop folders, or even the application dock at the bottom of the computer screen. Any ideas on what I may be doing wrong??

You need to go to System Preferences > Displays > Arrangement > Mirror displays
Voila

DVI - VGA -Any loss of quality?

Similar Messages

Maybe you are looking for