sorry if this has been discussed a lot before but I've got a question regarding colour profiles in Lightroom when exporting. As I understand it, Lightroom edits everything in the ProPhoto colour space. I know Lightroom does not have colour soft proofing, but I don't know how it handles colour conversions when exporting. Does it convert using "relative colormetric" or "perceptual?" Or what? Can the rendering intent be controlled? Or... Is it just safer to export as ProPhoto when doing critical printing then soft proofing then converting to other colour spaces using Photoshop?
I ask this question mainly because my inkjet prints are always perfect and closely match my screen. But I've found that when printing to a Fuji Frontier on Chrystal Archive paper I loose tonal definition in black values below 10. Even when adjusting the black output point in PS to 10, the shadow detail is still mushy. The prints just don't have the contrast range and subtlety I like to see in my prints. I know this is partly due to the resin based paper, but surely I'm doing something wrong?
Oh, and I forgot to say I am up to play with monitor profiling etc. I'm working on a MacBook Pro, which is by no means best for critical work, but, as I said above, it's giving very reliable results when printing to an Epson 3800.