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Author Topic: Do J Holmes Color-Space Profiles offer any advantage in LR CC Classic, PS?  (Read 352 times)

peterwgallagher

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I've recently seen a few mentions of this software on the 'net, mostly from photographers who were using the J Holmes profiles 3 or more years ago with Photoshop (Charlie Cramer, apparently, among them).

Are these profiles still valuable under LR Classic CC and PS? Will they work like the existing profiles (I assume they will).

I'd love to hear from current users.

I've been using a Lumariver Profile created with an X-Rite ColorChecker Passport card image in my Oly OMD-EM1 Mk2. But, I think I like some of the new LR profiles better (especially Landscape).

I've also been in the habit of sometimes tweaking color saturation in the "Calibration" tab of LR or perhaps using the LAB Curve-compression technique in PS to get more or less saturation for different images. For printing (Epson SC-800) I alway use the manufacturer's ICC profile.

So... Should I buy a J Holmes set? Is the DCam 4 (ProPhoto replacement) the best to use with LR (which uses a similarly wide gamut in the Develop module)?

Will i still have a crappy experience exporting to sRGB for Flickr?

Thanks for any advice.

Best, Peter
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andrewrodney

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Vastly different kinds of profiles here; camera (.dcp) and RGB working space tweaked ProPhoto RGB. Used for differing purposes. One issue with sRGB is it's crappy.  ;D
http://digitaldog.net/files/18Color%20Management%20in%20Lightroom.pdf
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Andrew Rodney
Author “Color Management for Photographers"

peterwgallagher

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Vastly different kinds of profiles here

Thank you Andrew. Maybe I put the question in the wrong way.

What I’m asking is whether the J Holmes “profiles”, that were designed I think to work as color-spaces in ACR/PS are any value in LR as color profiles. 

As you point out, a color space and a camera profile are very different things. But in LR I can’t choose the color space (Melissa RGB in the LR Develop Module as your article points out). I can only use a “profile”, whether camera specific — i.e. .dcp — or not, to determine the suite of hues/chroma that are chosen from the available gamut for any particular set of values that emerge from the image-processing pipeline.

I’m asking if the J Holmes color-space profiles do this too in LR.

As I understand it, they are used to set the working color space in ACR/PS.
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ErikKaffehr

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Hi,

I don't feel it is very clear how Joseph Holmes's color profiles are intended to be used. It seems that folks have found them useful, I noticed a positive comment from Charlie Cramer.

If you work out of Lightroom, the default profile used Photoshop is ProPhoto RGB and that is a perfectly good colour space for a 16 bit RGB.

If you convert to another profile that would not affect colours, just move their coordinates. You can assign a different profiles, but you should really not do that if you don't exactly know what you are doing. Be careful out there...

So, try to find out the intended workflow.

Best regards
Erik



Thank you Andrew. Maybe I put the question in the wrong way.

What I’m asking is whether the J Holmes “profiles”, that were designed I think to work as color-spaces in ACR/PS are any value in LR as color profiles. 

As you point out, a color space and a camera profile are very different things. But in LR I can’t choose the color space (Melissa RGB in the LR Develop Module as your article points out). I can only use a “profile”, whether camera specific — i.e. .dcp — or not, to determine the suite of hues/chroma that are chosen from the available gamut for any particular set of values that emerge from the image-processing pipeline.

I’m asking if the J Holmes color-space profiles do this too in LR.

As I understand it, they are used to set the working color space in ACR/PS.
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Erik Kaffehr
 

andrewrodney

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You could convert to one of Joe's profiles from the native color space used for processing (ProPhoto RGB primaries, different TRC) but I don't see the point.
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Andrew Rodney
Author “Color Management for Photographers"

SeanPerry

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Hi Peter + all,

They are working spaces… a few of the benefits are a 10 bit, bespoke TRC, and being able to utilize a gamut that is generous but not overly large and thus more efficient. Also, the associated chroma variants are such an elegant way to influence colorfulness in PS. I am a big fan of them, and his work.

I render into DCam 3, J Holmes from Capture One. If you want to use Adobe, it is easier to accomplish via ACR in PS or Bridge. One of my long standing feature wishes for LR is allowing any profile to be selected when round tripping, as you know currently you are limited to ProPhoto, AdobeRGB, etc. For LR you have to export files to render into Joe’s spaces.

The chroma variants are for PS only, and boss cool. Here is a great overview from his website.

https://www.josephholmes.com/profiles/my-spaces-and-sets

I hope the above helpful + all best,

Sean.
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