I set up films for screenprinting for remote clents who don't and never will have RIPs. When I set up films I make halftone greyscale links in photoshop, embed them into Illustrator files and print seps from those through Acrobat. Then I send the client one huge (900 or 1200ppi) greyscale .pdf or .tiff per film, and print sans RIP. It's very clunky compared to printing through a RIP.
It would save me hours of work if I could just print through a RIP directly to a .tiff or .pdf without doing all the halftone work in photoshop. Even if someone could point me in the right direction you'd have my eternal gratitude!
I used to use a PC application that would create .tiff separations ( CMYK ); called PhotoPRINT. I uesed to create Illustrator EPS files and send them through the application where you could then do whatever you wanted with them. In my case, they were sent to a que for digital print output. But, PhotoPRINT allowed me to setup the screening in the application. I wonder if that could work for you?
Take a look at this...
It's not cheap. But, you may want to contact them and see if there is any way to get a demo. Also, look at the specs in the "Extended Information" tab. 3/4 of the way down they make reference to color separations. I used this RIP in a large format workstation. Very good, very fast. I used to open the individual .tiff seps in Photoshop where I could do post edits if I had to.
That's exciting! It's the closest I've come so far to any kind of solution except for one day of optimistic but ultimately futile expirimenting with GhostScript. I'll certainly call them and talk to a salesperson, at least. But it seems counterintuitive that nothing in all these Adobe products will do this for me... the monthly subscription is more attractive then the $995.
In the weeks that I've been chasing this around you're the first person who's set me on a new lead, so thank you very much for replying!
I've often wondered if there isn't a 'virtual non-postscript printer' that I could print AccuRIP, Ghostscript, or some other RIP through. Have you heard of anything like that?
@Monika, when i downloaded Phantasm CS I thought the halftone function was just going to be an graphic design effect that wasn't going to help much, but still worth exploring... but while I was playing with it I got this tingly feeling right at the top of my scull when I realized how unbelieveably valuable that halftone funtion it. Thank you so much for the suggestion, you might have saved me hundreds of hours of setting up greyscale halftone tiffs in phtoshop