In the #29 Print video, there is discussion about printing to a file and that JPEG is currently the only option. I have a fine art-quality printing lab I want to use that has good color management instructions and very stringent requirements. In their instructions, they have you save as a TIFF after a list of other requirements I can reproduce more easily in LR2 than in Photoshop (as they suggest).
My question is this: How much am I losing in real terms by instead printing to JPEG in LR2 at 100% and converting to TIFF (if they insist on it)?
My second question is: Why did Jeff print the contact sheet to a PDF? Does it bypass the JPEG limitation? I would imagine PDFs compress the bejeezus out of embedded photos.