Luminous Landscape Forum
Raw & Post Processing, Printing => Adobe Lightroom Q&A => Topic started by: Slobodan Blagojevic on March 29, 2015, 09:07:25 pm
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Where to install a lab's icc profile on Mac so that LR can see it for soft proofing?
Tried the following in vain:
- Library/ColorSync/Profiles
- Users/Slobodan/Library/ColorSync/Profiles
Do I need to restart the computer for it to work?
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You're doing everything correctly, did you see if it shows up in Photoshop?
You do not need to restart computer.
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Photoshop sees it, LR not. I am looking in LR after clicking on "Other" and then "Include display profiles."
Profile info says it is CMYK profile... LR can't read those?
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CMYK or device links will not show up in LR. Just what kind of profile, from where?
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Right, CMYK... I was editing my post while you replied.
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Lightroom is RGB only.
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I had a similar issue (fairly sure it was here at LuLa that I posted about it) what bolied down to if I recall was one provided what turned out to a mixture of ICC profiles and something like 3 out of 9 were not RGB....fair did my head in at the time more because I could not get the lab to understand that there was an issue under LR. Afteral it is not as if LR is a new kid on the block.....they told me to use PS for those papers, I said to them "surely they have many LR users of their services...and please supply profiles for all the papers..." Suffice to say I have not used the lab ;)
PS should have said this was on Win7 Pro 64 bit
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In most, if not all, .icc profile infos that I have it states that the rendering intent is "perceptual". What does it practically mean? What if I select "relative" during printing?
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As I understand it, the info about the rendering of an icc profile is a tag in the header which is meaningful only in certain contexts such as Devicelink or embedded source profiles. It is ignored when using to convert to an output profile such as a printer.
Even matrix profiles such as Adobe RGB show "perceptual" in that tag.
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dont forget that in LR, you can make profiles/invisible to selection by clicking 'Other...' (as it brings up a list of ALL profiles and you select what subset you want to see/choose).
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dont forget that in LR, you can make profiles/invisible to selection by clicking 'Other...' (as it brings up a list of ALL profiles and you select what subset you want to see/choose).
That's why I mentioned:
I am looking in LR after clicking on "Other" and then "Include display profiles."
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didn't see that :-\
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In most, if not all, .icc profile infos that I have it states that the rendering intent is "perceptual". What does it practically mean? What if I select "relative" during printing?
Means next to nothing. There is a preferred RI in the profile in the event it's accessed in an application that doesn't ask the user what to use.
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Means next to nothing. There is a preferred RI in the profile in the event it's accessed in an application that doesn't ask the user what to use.
Thanks.
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Andrew,
What is your advice when sending a file to a lab that has profiles downloadable? To send them a file with ProPhotoRGB (alternatively AdobeRGB or even sRGB) or to convert to a printer/paper profile and the rendering intent of choice? In this particular case, we are talking about a "direct print on brushed aluminum" CMYK profile by White Wall lab, which I assume has a gamut even smaller than sRGB.
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What is your advice when sending a file to a lab that has profiles downloadable? T
Can you use it to convert to the output color space and then send to them for output? Unless the answer is yes, the profile is pointless.
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Can you use it to convert to the output color space and then send to them for output? Unless the answer is yes, the profile is pointless.
So, you are saying it is better to convert myself to the output profile than to send them a working-space profile? As for "pointless," isn't soft proofing one legitimate use, even if you do not convert to the output profile before sending?
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So, you are saying it is better to convert myself to the output profile than to send them a working-space profile? As for "pointless," isn't soft proofing one legitimate use, even if you do not convert to the output profile before sending?
How will you control which rendering intent to use and post conversion edits based on soft proof if you can't use the profile? If the lab supplies you the profile, you sure they will use it, as you instruct (RI per image)?
Having a profile only for soft proofing, without guarantee that exact conversion will take place when printing is conducted is like one hand clapping.
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Ok, so let's assume I can not be sure they'll use the attached profile... so you are saying send them the working space profile attached instead?
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Ok, so let's assume I can not be sure they'll use the attached profile... so you are saying send them the working space profile attached instead?
What are they asking for?
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What are they asking for?
Emphasis mine:
File format
WhiteWall accepts the file formats JPG and TIF.
Uploaded files should ideally be 300 DPI, 8-bit, and have an embedded sRGB color profile. If you don’t know what any of that means, then just leave it to us! Your image files will, of course, be automatically checked as to whether or not they are suitable for what you’re ordering, and then they will be produced in the highest quality.
Color space
Your files may be uploaded in RGB or in CMYK. CMYK files will be converted into RGB in the production process. If a color profile is not attached to the file, we will assume that your file has an sRGB profile. For grayscale files, we use GrayGamma2.2 as a basis.
Color management for professionals: ICC profiles
The goal of a consistently deployed color management system is to ensure the most authentic reproduction of an image possible, using any printing device. For every technique WhiteWall uses to produce prints and copies, there is an ICC profile available for you to download.
The whole page is here (https://us.whitewall.com/service/Faq-image#AaiB-6).
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You're screwed ;D(into sRGB). There's nothing to soft proof. There is no reason to have their profile.
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You're screwed ;D(into sRGB). There's nothing to soft proof. There is no reason to have their profile.
They do say: "If a color profile is not attached to the file..." meaning (I hope) that if it is attached they will honor it?
Then the question becomes which profile to attach, working-space (say ProPhoto), or output-specific (say their "Direct print on brush aluminum")?
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They do say: "If a color profile is not attached to the file..." meaning (I hope) that if it is attached they will honor it?
No, they assume sRGB for untagged documents (profile is not attached).
Uploaded files should ideally be 300 DPI, 8-bit, and have an embedded sRGB color profile.
They expect sRGB.
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Thanks, Andrew, appreciate the input.