I want to make some large dot halftones for a comic book look. I set the halftones low, classic dot at 15 LPI and it looks normal, not big dots. the lowest it will let me set it is 4 LPI which should be way too large of a dot pattern and still nothing. I set it to process and spot and same results. I have no idea how to do this in Omega anyone know what to set to achieve this? thanks
Omega isn't good for this. It's like trying to cut wood with a screw driver.
Most manual halftones don't actually create circles ... more like pixelated representation of halftone circles.
Illustrator one filter a company made called phantasm which looks like it has a marvelous halftone effect.
But really ... if you are going for a comic book feel ... steal from a master .... Lichtenstein made an entire career using effects of printers on a large scale to create marvelous works of art. Keep in mind, that old school comics never used software to create their halftone effects and as such, halftone patterns were rather flat or simple gradients since it was done on transparencies in the photo separation process.
Mimic that by just making your own halftone pattern ... repeated circles in multiple rows of a square grid. Degree of angle determines the color to create an interesting moire ... for simple color halftones ... 22.5 degree of angle creates a decent halftone and your average 50% gradient is all you need. I attached a vector halftone sheet so you could see what 30%, 50% and 70% halftone would look like and how really easy it is to reproduce. Mine was made with a few vector techniques I know for speed halftones ... so they aren't entirely perfect circles ... but it works for an example.