Hi,
I'm hoping someone can help me in understanding the correct way to use a calibrated monitor or more correctly, how to use Lightroom with a calibrated monitor. I've read many posts across several forums and I am thinking that my problem is bourne of a fundamental misunderstanding of the whole colour calibration process.
I'm using a Dell 24'7WFP monitor as the display on a Windows OS with Adobe Lightroom 2 and Photoshop CS2 (although I'm ignoring Photoshop for the moment). I primarily edit for the web, although I do have a Canon iP9''' printer that I am hoping to use.
In an effort to ensure what I see is what others are most likely to see, I have recently purchased a Huey Pro and downloaded the latest software off their web site. Using the software seemed pretty straightforward (although there in no contrast setting on the Dell monitor) and I have created a custom profile with a white point of 65''K and gamma of 2.2. I've checked and it appears that this is the default profile as seen under Control Panel > Display > Advanced > Colour Management. Certainly, when I toggle the profile ON/OFF in the Huey sotware, there is a big difference. I have also used the F/8 trick on my camera to ensure that the display is around the 12'mcd mark.
At this point, I *think* I have done everything more-or-less correctly...
The confusion starts when I actually try and use this. As I understand the process when I import a RAW shot from my camera, Lightroom sees the in-camera AdobeRGB as irrelevant and dumps the RAW shot into its internal ProPhoto RGB space.
My first question is: At this point, the image I see on the screen in front of me is, in essence, these ProPhoto values that have been converted by the custom monitor profile such that a given value for red in the internal ProPhoto space is accurately represented on screen. Is this correct?
Now as I make the usual changes to the image such as white spot, exposure, curves and the like. I'm pretty sure that I am making changes directly to the values held in the internall ProPhoto space. I say this as I am assuming that Lightroom has no knowledge of the customer display profile in use as it's set at the OS level.
The biggest confusion I have is when I come to export the image. At this point I have an image sitting in Lightroom's internal colour space, that I can either save as either a JPG for uploading to the web or print directly from Lightroom. When I go to the export screen, it asks
for the colour space to use. It is here I get totally confused! What should this be? If I use sRGB, will this not completely change the colours when displayed on another monitor as it is ignoring my custom monitor profile? Should I specify the custom monitor profile as the colour
space?
Sorry to ask what must seem like a really simple question, but I'm really tearing my hair out on this! I feel like I'm so close to actually understanding it, but juts need a little shoving in the right direction
Thanks and regards,
Dave
I'm hoping someone can help me in understanding the correct way to use a calibrated monitor or more correctly, how to use Lightroom with a calibrated monitor. I've read many posts across several forums and I am thinking that my problem is bourne of a fundamental misunderstanding of the whole colour calibration process.
I'm using a Dell 24'7WFP monitor as the display on a Windows OS with Adobe Lightroom 2 and Photoshop CS2 (although I'm ignoring Photoshop for the moment). I primarily edit for the web, although I do have a Canon iP9''' printer that I am hoping to use.
In an effort to ensure what I see is what others are most likely to see, I have recently purchased a Huey Pro and downloaded the latest software off their web site. Using the software seemed pretty straightforward (although there in no contrast setting on the Dell monitor) and I have created a custom profile with a white point of 65''K and gamma of 2.2. I've checked and it appears that this is the default profile as seen under Control Panel > Display > Advanced > Colour Management. Certainly, when I toggle the profile ON/OFF in the Huey sotware, there is a big difference. I have also used the F/8 trick on my camera to ensure that the display is around the 12'mcd mark.
At this point, I *think* I have done everything more-or-less correctly...
The confusion starts when I actually try and use this. As I understand the process when I import a RAW shot from my camera, Lightroom sees the in-camera AdobeRGB as irrelevant and dumps the RAW shot into its internal ProPhoto RGB space.
My first question is: At this point, the image I see on the screen in front of me is, in essence, these ProPhoto values that have been converted by the custom monitor profile such that a given value for red in the internal ProPhoto space is accurately represented on screen. Is this correct?
Now as I make the usual changes to the image such as white spot, exposure, curves and the like. I'm pretty sure that I am making changes directly to the values held in the internall ProPhoto space. I say this as I am assuming that Lightroom has no knowledge of the customer display profile in use as it's set at the OS level.
The biggest confusion I have is when I come to export the image. At this point I have an image sitting in Lightroom's internal colour space, that I can either save as either a JPG for uploading to the web or print directly from Lightroom. When I go to the export screen, it asks
for the colour space to use. It is here I get totally confused! What should this be? If I use sRGB, will this not completely change the colours when displayed on another monitor as it is ignoring my custom monitor profile? Should I specify the custom monitor profile as the colour
space?
Sorry to ask what must seem like a really simple question, but I'm really tearing my hair out on this! I feel like I'm so close to actually understanding it, but juts need a little shoving in the right direction
Thanks and regards,
Dave
