Difference between halftone by RIP and Photoshop

[paulwong416]

Hi everyone, I don't own a RIP software myself and usually i do it in Photoshop > Bitmap > halftone. I'm wondering what's the difference between the halftone outcome from a RIP and photoshop?

Additionally what is the finest frequency / LPI do you guys prefer for printing with manual press on T-shirts?

thanks!

[Catspit Productions]

Basically the quality of the halftone dot is very different. PS produces rough dot without clearly defined edges which can affect resolution. Vector halftones done through vector software and RIP software is true dot. The dots are well defined, circular, elliptical or square perfectly. People use different dot shapes but the vector RIP halftone will have much higher resolution and detail than that of Photoshop which will result in a better halftone print.

With tee shirts you rarely need to go above 65 LPI unless you're doing some kind of wicked high detail CMYK job. Most of my 1 color halftones for spot and dot and 1 color photographs are done as a 45 LPI, 15 degree angle on a 230 mesh count.

How To Screen Print 1 Color Halftones
https://www.youtube.com/playlist?list=P ... GCc2tXx4l3