Topic: Where to install a lab's profile on Mac (Read 3970 times)

Slobodan Blagojevic · « **on:** March 29, 2015, 09:07:25 pm »

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?

digitaldog · « **Reply #1 on:** March 29, 2015, 09:19:12 pm »

You're doing everything correctly, did you see if it shows up in Photoshop?
You do not need to restart computer.

Slobodan Blagojevic · « **Reply #2 on:** March 29, 2015, 09:33:29 pm »

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?

digitaldog · « **Reply #3 on:** March 29, 2015, 09:35:17 pm »

CMYK or device links will not show up in LR. Just what kind of profile, from where?

Slobodan Blagojevic · « **Reply #4 on:** March 29, 2015, 09:36:18 pm »

Right, CMYK... I was editing my post while you replied.

digitaldog · « **Reply #5 on:** March 29, 2015, 09:37:22 pm »

Lightroom is RGB only.

Box Brownie · « **Reply #6 on:** March 29, 2015, 09:55:47 pm »

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

Slobodan Blagojevic · « **Reply #7 on:** March 29, 2015, 10:07:20 pm »

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?

fdisilvestro · « **Reply #8 on:** March 30, 2015, 07:01:04 am »

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.

howardm · « **Reply #9 on:** March 30, 2015, 10:55:31 am »

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).

Slobodan Blagojevic · « **Reply #10 on:** March 30, 2015, 10:58:48 am »

Quote from: howardm on March 30, 2015, 10:55:31 am

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:

Quote

I am looking in LR after clicking on "Other" and then "Include display profiles."

howardm · « **Reply #11 on:** March 30, 2015, 11:05:33 am »

didn't see that $:-\$

digitaldog · « **Reply #12 on:** March 30, 2015, 11:07:23 am »

Quote from: Slobodan Blagojevic on March 29, 2015, 10:07:20 pm

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.

Slobodan Blagojevic · « **Reply #13 on:** March 30, 2015, 11:12:45 am »

Quote from: digitaldog on March 30, 2015, 11:07:23 am

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.

Slobodan Blagojevic · « **Reply #14 on:** March 30, 2015, 11:30:56 am »

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.

digitaldog · « **Reply #15 on:** March 30, 2015, 12:17:41 pm »

Quote from: Slobodan Blagojevic on March 30, 2015, 11:30:56 am

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.

Slobodan Blagojevic · « **Reply #16 on:** March 30, 2015, 12:34:08 pm »

Quote from: digitaldog on March 30, 2015, 12:17:41 pm

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?

digitaldog · « **Reply #17 on:** March 30, 2015, 01:07:42 pm »

Quote from: Slobodan Blagojevic on March 30, 2015, 12:34:08 pm

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.

Slobodan Blagojevic · « **Reply #18 on:** March 30, 2015, 02:05:07 pm »

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?

digitaldog · « **Reply #19 on:** March 30, 2015, 02:37:50 pm »

Quote from: Slobodan Blagojevic on March 30, 2015, 02:05:07 pm

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?

Author Topic: Where to install a lab's profile on Mac (Read 3970 times)