[scrible1980]

Hello,
I am having problems with a photographic image I am trying to print. All of my equipment is in good working order, new bulb in my exposure unit and I'm using wasatch rip to output the film. This weird banding is occurring around the image. The image is output at 55lpi and I'm using a 90T (225) screen. Can anyone help please?

 

[ole Jobe]

Did you scan this image. Looks like it. If so, try laying the image at an angle on the scanner. This will sometimes eliminate the moire pattern.
God Bless.

 

[TYGERON]

Read this

Halftone Dots Made Easy |

and anything online by Mark Coudray on halftones.

One common issue is the angle of your halftone.

One suggestion (and there are numerous others) is to use 22.5°

 

[scrible1980]

Thank you for your help. 22.5 seems to be the winner