I got my copy of Adobe Lightroom a couple of weeks ago, and I’m quite enjoying it (academic license, $94.95). The amount of tweaking you can do to images is amazing, especially with the RAW files from my Rebel XTi. I definitely made the right decision about getting Lightroom instead of Photoshop CS3. At this point Photoshop would just have too many options for me. Plus, Lightroom has lots of nice DAM (Digital Asset Management) features that Photoshop doesn’t. I’m sure I will want to get Photoshop CS3 at some point (perhaps around Christmas?), but right now I’m happy with Lightroom.
There is one small problem. I can tweak images to look exactly like I want them to in Lightroom, but then I have to export them to JPEGs. On my monitor at least, there is a notable color shift between the Lightroom preview and the exported JPEG viewed in Firefox or Windows Picture Viewer. Here’s an example:


The first one is a screenshot of the Lightroom preview. The second one is a scaled down version of the exported JPEG. On my monitor (and my monitor at work) there is an obvious color shift. Depending on the calibration of your monitor and the browser you’re using, these images may look completely different to you. If I import the exported JPEG back into Lightroom, the two look identical.
All of this led me to investigate the wonderful world of color management. Jeffrey Friedl has a good color management tutorial on his blog. It’s seven pages long, but the first three tell you most of what you need to know. Jeffrey is the author of O’Reilly’s Mastering Regular Expressions. I starting reading his blog a couple of months ago, but I missed his tutorial because he posted last year.
As it turns out, neither Firefox, nor IE, nor Windows Picture Viewer is color managed. Lightroom is, of course. The sRGB color space is supposed to render correctly in non-color managed applications. I knew this, and was exporting using sRGB, but the color shift was definitely there. ProPhoto RGB is the working color space for Lightroom, and there are definitely some colors in ProPhoto RGB that sRGB can’t display, but I don’t think that, by itself, accounts for the color shift.
I posted to a couple of forums, and the most viable explanation is that my monitor is miscalibrated. I’m not completely convinced, but I have ordered ColorVision Spyder2 Express. Hopefully it will solve my problem. If it doesn’t, well, I needed to have my monitor calibrated anyway. It should be here tomorrow, so we’ll find out soon.