thx in advance and thx to all who have contributed to this website.......
I have a photo of a couple cacti in the desert and I want to print it out on a shirt. I want to make it a two color image basically print out the image normal on an inkjet film and than invert the image and print a second one like that to get a "base" color and a "higlight" or "accent" color on the shirt.
I have the ability to print halftones ,thx to ghostscript/gview/redmon so i just need to know some questions on setting up an image before printing it out in halftones with gview/ghostscript.
so here is my question or rather questions , plural....
what is a good dpi for halftone images??
how do i change my dpi with ghostscript/gview??
can i set the dpi in photoshop??
what screen mesh is good for halftone printing??
what resolution should i save my image as in photoshop for good halftones??
do i need to change my frequency or screen angle in photoshop before i print it??
and , whats the meaning of life??
in case it matters i am using 355 mesh count screens.
Well, since your questions are all of the artistic type, I cannot really help you out. I will say that using 355's should be interesting, especially if your on a manual. The mesh count for halftones will vary greatly and basically depend on lpi in the artwork. We've been able to get some real fine 45 lpi halftones on a 156 but would typically go to a 200-230 for that and a 305 for 50+ lpi work. A lot of what you can get to hold on a certain mesh count will depend on the quality of your stencil. Too much emulsion is not good, too little won't hold the detail. Quality of your emulsion and light source will play a role in what mesh to go with as well. So many factors that can go wrong or right.
Design in photoshop at 200-300dpi.
Print from photoshop using the print preview window to set halftone angle and size.
40-55lpi is a good range. Angle should not be 0,45,90,or 180.
Screens can be from 156-305 usually.
The higher the mesh, the finer the halftone dots can be.
Only use ghostscript to rip the film to halftones.
All the settings are made in photoshop.
Halftone printing..........ghostscript/gview 
Re: Halftone printing..........ghostscript/gview 
