I am in the process of preparing photos for a photobook to be printed with a volume commercial printer (zno.com). I have calibrated my screen, and have received ICC profiles for my printer, and am able to successfully soft proof against this in Lightroom.
The printer has told me that they only accept the photos in sRGB colour space.
When I softproof a photo (Simulate Paper and Ink is checked), it looks slightly under-saturated and lower exposure, lighter blacks when Intent is Perceptual. When I switch Intent to be Relative it seems to more closely match non-soft proofed copy, and I prefer the look.
The ICC profile itself (opened in Notepad) has a statement saying it is Perceptual.
I am aware that Lightroom printer module has an option to set intent, however there seems to be no such setting in the Export dialog.
Given my printer is a volume printer (photobooks) I would like to am unable to specify relative or perceptual intent to them.
Per the histograms, we can see that the blacks have been 'capped off' in the Perceptual image; if I play with exposure settings and set image to all-black then this is still the 'blackest' the image becomes. It suggests the ink will not go as black as the screen, and I can understand this. However what I do not understand is why the Relative intent shows blacker blacks.
- Am I correct in thinking that because the ICC profile states Perceptual then it is most likely that the Printer themselves uses Perceptual Intent for printing?
- Am I able to convert the colour space mapping to ‘hard code’ to Relative within Lightroom so it more closely resembles what I see when printed?
- I thought the histogram for softproofing only shows the range that is printable, so why does relative intent show blacker blacks (lower exposure) than the Perceptual? in other words, regardless of what sliders I pull, I cannot match the same range in Perceptual intent as is suggested in Relative.
- Since my original post I learned here that it's possible to set Intent in the Print module within Lightroom, but also export JPEG there: see Adobe settings. I'm interested to learn 4a) why would one use this over the Export option, eg would there be any quality differences? b) As far as I understand, using Relative intent changes the colour profile of the image, therefore if a user 'exports' an sRGB JPEG using Relative intent from the Print module, then would we see exactly the same image in SoftProofing the original in Relative intent in Develop module?