Unfortunately I don't have the time to do any test prints for this poster—so need to make sure I'm going to get the results I want before I order my positives.
I've never tried to use halftone dots in printing before—I've always just kept it simpler.
Here is an element from the poster, scaled down in size, unfiltered. Obviously I want to keep it close to this.
Here is the image at 100% size, unfiltered (right click-view image to view full size).
And here is the image bitmapped, with a round halftone screen, frequency of 30 (right click-view image to view full size).
Obviously when printed out, the dots are a lot finer.
I'm using a 120 mesh screen.
I'm printing this black on silver, on white paper.
Will the small white dots expose and print? Can anyone give me some expert advice? If all else fails, I can sign up for a printers in Leeds—but would rather not pay £60 for a few test prints. Of course, I will if I have to.
Thanks for reading my poorly written plea for help,