Color management question

[tonysiciliano1]

Please correct me if my understanding is incorrect, and answer my one question if you can. So, I shoot with my camera in Adobe1998 color space. Let's suppose I capture a hypothetical image that contains 99.9% of that color space. I import it into LR, which uses Prophoto by default. I view the photo on my monitor, which is not a wide gamut monitor so I see less than 100% of the colors my camera has captured. Let's suppose I go crazy with Develop sliders and now I make some radical changes in the photo. Is it possible that these changes push the color gamut of the photo outside of the range of Adobe1998 into the range of ProPhoto? And I may see some changes on my monitor but some of the changes I will not see because of the limited gamut of my monitor? And then I make a print on Epson Luster using my 3880 printer, and now I may see some of the colors that are outside of Adobe 1998? Is my understanding correct? Thanks!

[Mark D Segal]

Broadly yes, but be aware that the gamut shapes between your monitor and your printer/paper combination may also differ, so what you are missing between the one and the other depends not only the gamut volume but also the differences of the shapes, which will impact different parts of the colour spectrum differently.

[digitaldog]

The key is to understand the limitations of color gamut are the display unless you edit in a working space gamut that's as small and that's kind of throwing the baby out with the bath water.
The other key is to understand no printer can reproduce the gamut of any RGB working space including tiny sRGB gamut. And that there are output devices that exceed the color gamut of sRGB and Adobe RGB (1998).
The major key is to understand that when editing wider gamut data than the display, AS you move certain controls that affect color gamut, you can be affecting the data and not seeing it. So if you move a slider and it stops updating visually, STOP and be aware, you're flying blind.
This overview might help:



Everything you thought you wanted to know about color gamut
A pretty exhaustive 37 minute video examining the color gamut of RGB working spaces, images and output color spaces. All plotted in 2D and 3D to illustrate color gamut.
High resolution: http://digitaldog.net/files/ColorGamut.mov
Low Res (YouTube): http://www.youtube.com/watch?v=n0bxSD-Xx-Q

[Alan Goldhammer]

Please correct me if my understanding is incorrect, and answer my one question if you can. So, I shoot with my camera in Adobe1998 color space. Let's suppose I capture a hypothetical image that contains 99.9% of that color space. I import it into LR, which uses Prophoto by default. I view the photo on my monitor, which is not a wide gamut monitor so I see less than 100% of the colors my camera has captured. Let's suppose I go crazy with Develop sliders and now I make some radical changes in the photo. Is it possible that these changes push the color gamut of the photo outside of the range of Adobe1998 into the range of ProPhoto? And I may see some changes on my monitor but some of the changes I will not see because of the limited gamut of my monitor? And then I make a print on Epson Luster using my 3880 printer, and now I may see some of the colors that are outside of Adobe 1998? Is my understanding correct? Thanks!

If you are doing RAW capture the choice of color space in the camera is irrelevant except for what your LCD will show you.  It does have an impact on JPEG capture.  I know on the Nikon Z 6, sRGB gives a more accurate color display on the camera.