Pentax k-1 Colour Calibration

andy271 · 04-15-2021, 12:23 PM

hi guys hope someone can help i shoot a lot in pixel shift my workflow is raw Therapy convert to tiff then light room for some small alterations but now i want to make some colour profiles for my camera with the x rite passport problem is Photoshop or light room don’t see the profiles only if they are dng any ideas of a good workflow for this i cant give up raw Therapy as it is superb for pixel shift files

TonyW · 04-15-2021, 01:00 PM

Originally posted by andy271

hi guys hope someone can help i shoot a lot in pixel shift my workflow is raw Therapy convert to tiff then light room for some small alterations but now i want to make some colour profiles for my camera with the x rite passport problem is Photoshop or light room don’t see the profiles only if they are dng any ideas of a good workflow for this i cant give up raw Therapy as it is superb for pixel shift files

Correct me if I am wrong but your Pentax pixel shift files are already DNG? If not they will need to be converted and Adobe has the free Adobe DNG converter.

Keep in mind that the profiles are actually Digital Camera Profiles (.dcp) that are produced from your DNG captures - not DNG files

RT will use .dcp camera profiles that can be produced from your Pentax DNG's and I would suggest using this rather than the basic X - Rite modules.

Do a search for Adobe DNG Profile editor 1.0.4 (I think this is the last version) and download together with intruction PDF. Shoot your Pixel Shift as DNG and use the Adobe product to make your profiles

andy271 · 04-15-2021, 02:39 PM

hi tony it looks fairly in depth but thanks for the info i will give it a try

stevebrot · 04-15-2021, 03:10 PM

Originally posted by andy271

hi guys hope someone can help i shoot a lot in pixel shift my workflow is raw Therapy convert to tiff then light room for some small alterations but now i want to make some colour profiles for my camera with the x rite passport problem is Photoshop or light room don’t see the profiles only if they are dng any ideas of a good workflow for this i cant give up raw Therapy as it is superb for pixel shift files

If you make the profiles for RT, that should do the job for you. The profile will be applied to the TIFF and will not be an issue for downstream processing. (Camera profiles apply to RAW development only.) I believe there are tutorials for using the X-Rite product to build profile for RT. IIRC, the process is not as slick as using the Adobe DNG Profile Editor, but should still work.

Steve

(...not an RT user, but remember previous threads from some years back where profile creation for RT is discussed...)

andy271 · 04-15-2021, 03:25 PM

thank you steve i think i will try that

Sykil · 04-15-2021, 03:28 PM

ColorChecker Camera Calibration v2.2.0

Use this to make the color profile and then load it in RawTherapee under Color Management.

andy271 · 04-15-2021, 04:13 PM

thanks sykil ive done that any idea what the working profile and output profile should be set to ive got my monitor calibrated ...another thing when i save the file to tiff will that colour profile be embedded in the tiff file

Last edited by andy271; 04-15-2021 at 05:25 PM.

**DWS1** · 04-15-2021, 07:40 PM

You could also create custom profiles in Lightroom and have them applied upon import.

stevebrot · 04-15-2021, 08:40 PM

Originally posted by andy271

another thing when i save the file to tiff will that colour profile be embedded in the tiff file

The profile will be what makes the color balance of your TIFF. While similar in some ways, it is not the same as an ICC profile used by output devices or LUTs used by videographers. You make the profile and RT uses it to interpret the RAW data and when used to make the TIFF, the work is done with no need to embed.

Steve

andy271 · 04-16-2021, 03:21 AM

hi DWS1 that wont work because i need to use raw therapee to demosaic the pixel shift images and it onlt saves in tiff

andy271 · 04-16-2021, 06:37 AM

any ideas how to get prophoto as the output file for raw therapy it isnt listed version 5.8 raw therapee

Sykil · 04-16-2021, 06:58 AM

Originally posted by andy271

any ideas how to get prophoto as the output file for raw therapy it isnt listed version 5.8 raw therapee

ProPhoto is designed to be a working profile; it's actually physically impossible for an RGB monitor to span it because it uses imaginary primary RGB values. Keeping your output profile sRGB is the best way to make sure your photos stay relatively consistent across platforms.

TonyW · 04-16-2021, 07:44 AM

Originally posted by andy271

any ideas how to get prophoto as the output file for raw therapy it isnt listed version 5.8 raw therapee

AFAIK RT expects these profiles to be already present on your system. If this is the case and you do not have the various working spaces installed you may find this link useful chromasoft - ICM Profiles

I assume you are intending to export as a 16 bit TIFF to enable pixel level edits prior to outputting to a specific device. In that case staying 16 bit Prophoto makes sense.

andy271 · 04-16-2021, 09:09 AM

ive got a wide colour gamut monitor so want to make the most out of it all my exporting is 16bit tiff size is no concern but i want the output file to be pro photo but in raw therapee it doesnt have it listed for some reason

---------- Post added 04-16-21 at 09:25 AM ----------

on output even with the chrmasoft icc profiles i cant change the output profile

stevebrot · 04-16-2021, 09:31 AM

Originally posted by andy271

ive got a wide colour gamut monitor so want to make the most out of it all my exporting is 16bit tiff size is no concern but i want the output file to be pro photo but in raw therapee it doesnt have it listed for some reason

---------- Post added 04-16-21 at 09:25 AM ----------

on output even with the chrmasoft icc profiles i cant change the output profile

Perhaps there is a setting in RT to include the other profiles in its list?

Steve

04-15-2021, 12:23 PM	#1
andy271 Senior Member Join Date: Mar 2018 Posts: 192	Pentax k-1 Colour Calibration hi guys hope someone can help i shoot a lot in pixel shift my workflow is raw Therapy convert to tiff then light room for some small alterations but now i want to make some colour profiles for my camera with the x rite passport problem is Photoshop or light room don’t see the profiles only if they are dng any ideas of a good workflow for this i cant give up raw Therapy as it is superb for pixel shift files

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Project 52 P52-9-9 Colour: Ton-sur-Ton / One Colour	Tsukiouji	Weekly Photo Challenges	5	04-22-2020 03:32 PM
K-5 LCD colour calibration	cqfast	Pentax K-5 & K-5 II	4	11-09-2019 12:45 PM
Colour cast following monitor calibration	danny38th	Digital Processing, Software, and Printing	11	10-12-2010 08:57 AM
New colour SANYO Eneelop for colour Pentax K-x	ogl	Pentax Camera and Field Accessories	18	11-18-2009 08:23 AM
calibration - opinions of colour	5teve	Digital Processing, Software, and Printing	20	10-10-2009 09:21 AM

04-15-2021, 01:00 PM	#2
TonyW Veteran Member Join Date: Feb 2016 Posts: 706	Originally posted by andy271 hi guys hope someone can help i shoot a lot in pixel shift my workflow is raw Therapy convert to tiff then light room for some small alterations but now i want to make some colour profiles for my camera with the x rite passport problem is Photoshop or light room don’t see the profiles only if they are dng any ideas of a good workflow for this i cant give up raw Therapy as it is superb for pixel shift files Correct me if I am wrong but your Pentax pixel shift files are already DNG? If not they will need to be converted and Adobe has the free Adobe DNG converter. Keep in mind that the profiles are actually Digital Camera Profiles (.dcp) that are produced from your DNG captures - not DNG files RT will use .dcp camera profiles that can be produced from your Pentax DNG's and I would suggest using this rather than the basic X - Rite modules. Do a search for Adobe DNG Profile editor 1.0.4 (I think this is the last version) and download together with intruction PDF. Shoot your Pixel Shift as DNG and use the Adobe product to make your profiles

04-15-2021, 02:39 PM	#3
andy271 Senior Member Join Date: Mar 2018 Posts: 192 Original Poster	hi tony it looks fairly in depth but thanks for the info i will give it a try

04-15-2021, 03:10 PM	#4
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by andy271 hi guys hope someone can help i shoot a lot in pixel shift my workflow is raw Therapy convert to tiff then light room for some small alterations but now i want to make some colour profiles for my camera with the x rite passport problem is Photoshop or light room don’t see the profiles only if they are dng any ideas of a good workflow for this i cant give up raw Therapy as it is superb for pixel shift files If you make the profiles for RT, that should do the job for you. The profile will be applied to the TIFF and will not be an issue for downstream processing. (Camera profiles apply to RAW development only.) I believe there are tutorials for using the X-Rite product to build profile for RT. IIRC, the process is not as slick as using the Adobe DNG Profile Editor, but should still work. Steve (...not an RT user, but remember previous threads from some years back where profile creation for RT is discussed...)

04-15-2021, 03:25 PM	#5
andy271 Senior Member Join Date: Mar 2018 Posts: 192 Original Poster	thank you steve i think i will try that

04-15-2021, 03:28 PM	#6
Sykil Forum Member Join Date: Jun 2020 Location: Austin Posts: 74	ColorChecker Camera Calibration v2.2.0 Use this to make the color profile and then load it in RawTherapee under Color Management.

04-15-2021, 04:13 PM	#7
andy271 Senior Member Join Date: Mar 2018 Posts: 192 Original Poster	thanks sykil ive done that any idea what the working profile and output profile should be set to ive got my monitor calibrated ...another thing when i save the file to tiff will that colour profile be embedded in the tiff file Last edited by andy271; 04-15-2021 at 05:25 PM.

04-15-2021, 07:40 PM	#8
DWS1 Site Supporter Join Date: Aug 2018 Location: Arkansas, USA Posts: 1,169	You could also create custom profiles in Lightroom and have them applied upon import.

04-15-2021, 08:40 PM	#9
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by andy271 another thing when i save the file to tiff will that colour profile be embedded in the tiff file The profile will be what makes the color balance of your TIFF. While similar in some ways, it is not the same as an ICC profile used by output devices or LUTs used by videographers. You make the profile and RT uses it to interpret the RAW data and when used to make the TIFF, the work is done with no need to embed. Steve

04-16-2021, 03:21 AM	#10
andy271 Senior Member Join Date: Mar 2018 Posts: 192 Original Poster	hi DWS1 that wont work because i need to use raw therapee to demosaic the pixel shift images and it onlt saves in tiff

04-16-2021, 06:37 AM	#11
andy271 Senior Member Join Date: Mar 2018 Posts: 192 Original Poster	any ideas how to get prophoto as the output file for raw therapy it isnt listed version 5.8 raw therapee

04-16-2021, 06:58 AM	#12
Sykil Forum Member Join Date: Jun 2020 Location: Austin Posts: 74	Originally posted by andy271 any ideas how to get prophoto as the output file for raw therapy it isnt listed version 5.8 raw therapee ProPhoto is designed to be a working profile; it's actually physically impossible for an RGB monitor to span it because it uses imaginary primary RGB values. Keeping your output profile sRGB is the best way to make sure your photos stay relatively consistent across platforms.

04-16-2021, 07:44 AM	#13
TonyW Veteran Member Join Date: Feb 2016 Posts: 706	Originally posted by andy271 any ideas how to get prophoto as the output file for raw therapy it isnt listed version 5.8 raw therapee AFAIK RT expects these profiles to be already present on your system. If this is the case and you do not have the various working spaces installed you may find this link useful chromasoft - ICM Profiles I assume you are intending to export as a 16 bit TIFF to enable pixel level edits prior to outputting to a specific device. In that case staying 16 bit Prophoto makes sense.

04-16-2021, 09:09 AM	#14
andy271 Senior Member Join Date: Mar 2018 Posts: 192 Original Poster	ive got a wide colour gamut monitor so want to make the most out of it all my exporting is 16bit tiff size is no concern but i want the output file to be pro photo but in raw therapee it doesnt have it listed for some reason ---------- Post added 04-16-21 at 09:25 AM ---------- on output even with the chrmasoft icc profiles i cant change the output profile

04-16-2021, 09:31 AM	#15
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by andy271 ive got a wide colour gamut monitor so want to make the most out of it all my exporting is 16bit tiff size is no concern but i want the output file to be pro photo but in raw therapee it doesnt have it listed for some reason ---------- Post added 04-16-21 at 09:25 AM ---------- on output even with the chrmasoft icc profiles i cant change the output profile Perhaps there is a setting in RT to include the other profiles in its list? Steve