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Main Board => Flexcolor, Phocus, and other software. => Topic started by: pkahn on November 01, 2023, 06:08:53 AM

Title: Printing raw files vs tiff 16
Post by: pkahn on November 01, 2023, 06:08:53 AM
Is the Hasselblad color space compressed when an adjusted raw file is exported to a TIFF 16?
Title: Re: Printing raw files vs tiff 16
Post by: tenmangu81 on November 01, 2023, 07:07:16 AM
If you export as a TIFF with Hasselblad L*RGB as working space, you'll keep it. I suggest, however, to export as TIFF-16 Prophoto, which is a common working space for many softwares, including Photoshop, and which is large enough to encompass any printing.
Title: Re: Printing raw files vs tiff 16
Post by: JCM-Photos on November 01, 2023, 07:53:08 AM
If your computer stores the Hasselblad L*RGB profile (what indeed is when Phocus is installed) all other Photo software will be able to open Phocus TIFF exports with this profile without problem.
I do the follow up work in Affinity Photo as a 16bit Hasselblad L*RGB TIFF and even go directly to the my printer with it.

Adding unnecessary color space conversions lowers the end quality of the file as each new conversion is a new added approximation.
I would only recommend export conversions to Adobe RGB or sRBG for respectively TIFF or JPEG files for external use.

Title: Re: Printing raw files vs tiff 16
Post by: tjelt on November 06, 2023, 05:05:16 AM
Prophoto provides a larger color space than Adobe RGB.  I'm curious why you recommend Adobe RGB over Prophoto?

Title: Re: Printing raw files vs tiff 16
Post by: JCM-Photos on November 06, 2023, 07:02:40 AM
I recommend Hasselblad L* space as a working space ( very close to Prophoto with better darks) and Adobe RGB as an export for external print service, as the best fine Art printers Gammut isn't bigger.
Title: Re: Printing raw files vs tiff 16
Post by: tenmangu81 on November 06, 2023, 08:41:12 AM
My very cheap printer has a gamut larger than Adobe RGB in some (reduced) parts....
So, I always start from a larger space than Adobe RGB before printing at home.
When externalizing printing, it just depends upon what the printer asks for. And very often, it is sRGB, and, yes, sometimes Adobe RGB.
Title: Re: Printing raw files vs tiff 16
Post by: JCM-Photos on November 07, 2023, 10:53:20 PM
Yes you are right when I print with my High end inkjet printer I go directly on the printer with Hasselblad L*

But most external non professional commercial print services have machines with a very low gammut, often much lower than Adobe RGB (for example on RA4 chemical papers, dye sublimation printers etc...)

It's allways more accutrate have little difference between file space and printer gammut, when the printing is external, unless you make hard proofed prints that cost a lot.
Title: Re: Printing raw files vs tiff 16
Post by: SaraBMay on November 19, 2023, 01:41:16 PM
I find that when I export from Phocus as a TIFF, I don't have the option to choose Hasselblad L* RGB or even Hasselblad RGB as the output profile— only the options of

Hasselblad 330 Skel 30K75
Hasselblad 350 Skel 30K90
Hasselblad Rec.709

There are many other options of course, including the usual PP RGB and Adobe RGB, but I would prefer a Hasselblad profile, since Adobe Camera RAW and Photoshop both recognize that. Is the best option to choose "source?" If not, which Hasselblad output profile should be chosen?

Thank you!
Title: Re: Printing raw files vs tiff 16
Post by: Whitten on November 19, 2023, 09:59:24 PM
The Hasselblad webinar recommends Hasselblad RGB as the best colourspace for most people. They only recommend L RGB for people doing critical copying - museums etc...
Title: Re: Printing raw files vs tiff 16
Post by: tenmangu81 on November 19, 2023, 11:11:16 PM
The best choice, recommended by Hasselblad team, is to select "Source" when you export as a TIFF. In that case, you get Hasselblad RGB as colour space. If it's not in the options, you have to create a new output preset.
Title: Re: Printing raw files vs tiff 16
Post by: NickT on November 20, 2023, 10:44:52 AM
Quote from: SaraBMay on November 19, 2023, 01:41:16 PM
I find that when I export from Phocus as a TIFF, I don't have the option to choose Hasselblad L* RGB or even Hasselblad RGB as the output profile— only the options of

Hasselblad 330 Skel 30K75
Hasselblad 350 Skel 30K90
Hasselblad Rec.709

There are many other options of course, including the usual PP RGB and Adobe RGB, but I would prefer a Hasselblad profile, since Adobe Camera RAW and Photoshop both recognize that. Is the best option to choose "source?" If not, which Hasselblad output profile should be chosen?

Thank you!

Hi Sara those are CMYK profiles for commercial offset printing.
Suggest you re-install Phocus which should also install the Hasselblad RGB profiles. If you have them installed make sure they are in your profiles folder in your user folder as well as the library folder.
Title: Re: Printing raw files vs tiff 16
Post by: SaraBMay on November 20, 2023, 03:00:19 PM
Thanks, Nick. I re-installed Phocus, and still no Hasselblad RGB or L*RGB to choose from in Output Profiles. If I choose "source" as the output profile, I get Hasselblad RGB embedded in the file, which gets me halfway there, but I'd love to be able to get L*RGB as well. I'm not sure why it's not showing up in output profile options, even with "Show all Profiles" checked? All of my Epson ICC profiles are visible under output profile options, but the only Hasselblad profiles are the CMYK options I mentioned in my previous post. I know you mentioned looking in my profiles folder and the library folder, but I looked for a profiles folder in my User folder and in the Library folder and don't see one. Just the ColorSync folder and the profiles that are loaded there. Thanks so much for any insights!
Title: Re: Printing raw files vs tiff 16
Post by: JCM-Photos on November 20, 2023, 06:26:06 PM
To be able to get L* in the export file you have to first choose it as a working space during RAW treatment.
Title: Re: Printing raw files vs tiff 16
Post by: Whitten on November 20, 2023, 09:38:45 PM
I learned something from this discussion and ended up just choosing 'source'.
Title: Re: Printing raw files vs tiff 16
Post by: SaraBMay on November 21, 2023, 07:54:54 AM
Quote from: JCM-Photos on November 20, 2023, 06:26:06 PM
To be able to get L* in the export file you have to first choose it as a working space during RAW treatment.

Thanks for that--which brings me to: where in Phocus can I choose L*RGB as the working space? Or is it an in-camera option? When I check the menu to the right of the RGB values with the image pulled up, the only options are Input, Output, and Lab. Is there somewhere else this can be done? Thanks again!
Title: Re: Printing raw files vs tiff 16
Post by: tenmangu81 on November 21, 2023, 09:44:59 AM
First you must show your tools panel, then in the reproduction tab.
As shown below (bottom of the screenshot):
Title: Re: Printing raw files vs tiff 16
Post by: NickT on November 23, 2023, 09:13:51 AM
Quote from: SaraBMay on November 20, 2023, 03:00:19 PM
Thanks, Nick. I re-installed Phocus, and still no Hasselblad RGB or L*RGB to choose from in Output Profiles. If I choose "source" as the output profile, I get Hasselblad RGB embedded in the file, which gets me halfway there, but I'd love to be able to get L*RGB as well. I'm not sure why it's not showing up in output profile options, even with "Show all Profiles" checked? All of my Epson ICC profiles are visible under output profile options, but the only Hasselblad profiles are the CMYK options I mentioned in my previous post. I know you mentioned looking in my profiles folder and the library folder, but I looked for a profiles folder in my User folder and in the Library folder and don't see one. Just the ColorSync folder and the profiles that are loaded there. Thanks so much for any insights!
I think it worth pointing out that Hasselblad RGB is absolutely huge, much bigger than ProPhoto RGB. I meant to say the other way around Profoto is huge. This means that you are going to be editing colours that you cannot see. IMO ProPhotoRGB HasselbladRGB encompasses sufficient colours for any currently available output. I think Adobe RGB is a wiser choice for 99% of users. If you want to see just how big HasselbladRGB ProfotoRGB is, open it with colour sync utility, right click and choose "hold for comparison" and load another profile to compare.

Edited to add, try loading your preferred RGB working space then compare your monitor profile and see what you are not seeing...
Title: Re: Printing raw files vs tiff 16
Post by: Whitten on November 23, 2023, 08:47:32 PM
Even Hasselblad recommend Hasselblad RGB over L RGB.
Title: Re: Printing raw files vs tiff 16
Post by: JCM-Photos on November 23, 2023, 11:11:38 PM
Hasselblad RGB space is not plenty bigger than Prophoto, it is really bigger than Adobe RGB in terms of space volume.

L* is not visually really bigger than Hasselblad RGB, it has better finer tonal details in the very dark tones, this difference is visible on my high end Eizo CG screen with Adobe RGB gammut, also visible on my Epson P800 prints.

What choice you have to do depends for me of your choice in image rendering.
If you want bigger full deep black image surface, Hasselblad RGB is the right choice
If you want subtle deep black variations and less full black image surface it's L*

Non L* has more visual impact
L* is more on the less impressive true rendering side
but as mentioned above, for me differences are subtle.
Title: Re: Printing raw files vs tiff 16
Post by: NickT on November 24, 2023, 05:23:22 PM
Quote from: JCM-Photos on November 23, 2023, 11:11:38 PM
Hasselblad RGB space is not plenty bigger than Prophoto, it is really bigger than Adobe RGB in terms of space volume.


Apologies you are absolutely right I had this the wrong way round.
Title: Re: Printing raw files vs tiff 16
Post by: JCM-Photos on November 25, 2023, 03:11:02 AM
You're welcome Nick
Title: Re: Printing raw files vs tiff 16
Post by: SaraBMay on November 27, 2023, 03:27:47 PM
Quote from: tenmangu81 on November 21, 2023, 09:44:59 AM
First you must show your tools panel, then in the reproduction tab.
As shown below (bottom of the screenshot):

Ahhhh, THANK you! Got it. I know Hasselblad recommends using Hasselblad RGB rather than L *RGB, but it's nice having the option to compare for oneself. Thanks!
Title: Re: Printing raw files vs tiff 16
Post by: tenmangu81 on November 27, 2023, 11:11:45 PM
Quote from: SaraBMay on November 27, 2023, 03:27:47 PM
Quote from: tenmangu81 on November 21, 2023, 09:44:59 AM
First you must show your tools panel, then in the reproduction tab.
As shown below (bottom of the screenshot):

Ahhhh, THANK you! Got it. I know Hasselblad recommends using Hasselblad RGB rather than L *RGB, but it's nice having the option to compare for oneself. Thanks!

Pleasure !! ;)
Title: Re: Printing raw files vs tiff 16
Post by: Plancton06 on December 21, 2023, 01:11:37 AM
I can set Adobe Camera Raw to Hasselblad L RGB easier than Phocus.
If I drag the files straight from the X2d ( in storage mode) into Photoshop, it seems camera raw allows keeping the Hasselblad L RGB space.
For those of us preferring Adobe camera raw over Phocus, this seems like a very efficient workflow.