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| Posted on 11/18/09 at 07:55 AM | |
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| If all you're using is Photoshop, you can output halftones directly to your film by changing the mode of your file to "bitmap", and change the "method" in the drop-down menu at the bottom of the dialog box to "halftone" and enter your linescreen, angle and dot shape in the subsequent dialog box. If you're working with spot color or process color, once you've edited your file to your satisfaction, save a copy, then use the "split channels" option by clicking the small tab at the upper right of the channels palette, then changing each of the subsequent grayscale channels to bitmap halftones as noted above. You'll wind up with a file for each of the separations. One other consideration when using this method is this: the sharpness of the dot shape when printing is not only determined by the resolution of you printer, but also by the resolution of your file. A low-res file will print ragged. Think of postscript files printed to a 300 dpi laser printer years ago . . . not as sharp on the edges as the same file printed to a 600 or 1200 dpi printer. When I've used this method, I always tried to create my file at 600 dpi so the halftone dots would be fairly sharp on the edges. Others may disagree. | |
  
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