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09/06/2006 12:25:11 PM · #1 |
I have a canon 350D and have been advised to shoot using the Adobe RGB rather than the sRGB colour space as it has more colours.
Now when I look at the images using the XP viewer they are all pretty red.
If I do a save for web, the pictures come out pretty lifeless.
My Questions.
Firstly:
I know that in my PS workflow I need to convert to sRGB before saving the file.
How / Where do you do that? Is it Image/Mode/Convert to Profile ...?
If so what settings should I use.
On my system it sais
Source Space = sRGB IEC61966-2.1
Destination Space = sRGB IEC61966-2.1 ????
Secondly:
Since this change my File names are no longer IMG_1234.jpg but start with _ for example _MG_1234.jpg. Is this normal? |
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09/06/2006 12:38:00 PM · #2 |
1.) Yes, the Image>MOde>Convert to Profile is what you should use. Curently, it looks like PS believes the image is already in sRGB space, so your color preferences may be set to ingore the embedded color space information in the file when opening it.
2.) Yes, that's normal.
Although Adobe RGB is a larger color space, most of your output is going to go to sRGB devices. That means that at some point, you'll need to convert profiles. When you do so, there is potential for color shifts as colors that are within the source space are changed so that they are within the smaller destination space. This can cause more problems than working within the smaller space to begin with.
I don't want to sound like Adobe RGB is worthless, far from it. It's just that the user must understand the implications of working in that space, and how to manage the conversions that are inevitably involved. If you aren't confident in doing so, go back to sRGB and get a good book on color management, something like "Real World Color Management" by Bruce Fraser. |
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09/06/2006 12:41:14 PM · #3 |
What Kirbic said and also, sometimes it's just not worth the extra effort to deal with Color Management.
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09/06/2006 01:23:05 PM · #4 |
Originally posted by aKiwi:
On my system it says
Source Space = sRGB IEC61966-2.1
Destination Space = sRGB IEC61966-2.1 ????
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This means you're already in sRGB. If the profile for the image were Adobe RGB it would say Adobe 1998.
You may be inadvertently doing the conversion when you open your file in photoshop. If the profile in the image you're opening doesn't match the working colorspace set in PS then PS will ask you what you want to do or do a conversion based on a preference setting. |
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09/06/2006 01:33:38 PM · #5 |
| You haven't said what your destination output device is - or whether you even care about printing at all. If prints matter, are you using your own inkjet printer or an outside lab/web/etc? That makes a difference as to which settings you should be using. |
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09/07/2006 01:07:37 AM · #6 |
Ok thanks for the answers.
My output is varied, sometimes web, sometimes local print and sometimes lab.
I think I will change back to sRGB to avoid all the hassle till I understand all this more fully. |
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09/07/2006 02:10:00 AM · #7 |
Originally posted by aKiwi:
I think I will change back to sRGB to avoid all the hassle till I understand all this more fully. |
Most likely, unless you are really pushing the gamut, you'll never need to go to AdobeRGB.
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09/07/2006 02:35:36 AM · #8 |
Therefore for a layman, is this right.....
if web : sRGB
if own printer : sRGB
if lab : Adobe RGB
sounds like sRGB is a winner, for the few pictures that might so through a lab, just a quick convert to Adobe RGB in photoshop sounds like the best option.
Anything that I've missed (for a layman)
cheers
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09/07/2006 03:47:25 AM · #9 |
As far as I know, normal photo printig labs expect sRGB not Adobe RGB.
Obviously when manipulating pictures, the more info in the file the better & then convert at the last step.
For me, I do lots of photo shoots and display/evaluate the pictures using the XP viewer. I also burn a CD with the originals for models / friends, so if the colours are all wrong for viewing or anyone without Photoshop, then for me it is obviously not the right way to do things. |
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09/07/2006 04:21:06 AM · #10 |
| I must admit - I've never really understood this colour management bit. So, what are you guys really saying - leave everything in sRGB (for safety) or that if you are going to get shots printed through a lab (the everyday type lab - not a pro set up) you should convert to Adobe RGB ? If so -when do you convert? After you have done all your adjustments in PS or at the beginning before you do anything ? |
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09/07/2006 11:10:18 AM · #11 |
Originally posted by KHolt:
Therefore for a layman, is this right.....
if web : sRGB
if own printer : sRGB
if lab : Adobe RGB
sounds like sRGB is a winner, for the few pictures that might so through a lab, just a quick convert to Adobe RGB in photoshop sounds like the best option.
Anything that I've missed (for a layman)
cheers |
if own printer: Adobe RGB
if lab: sRGB |
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09/07/2006 11:25:25 AM · #12 |
Originally posted by jemison:
if own printer: Adobe RGB
if lab: sRGB |
Correct.
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