Halftone Circles in Gimp

I've always wondered how to make those halftone patterns (using Gimp), but never knew how. I finally figured it out, and its pretty simple.

Step 1
Create a new document in Gimp. Set the background color to white.

Step 2
Create a new layer above the background. Make sure it is transparent. We will be merging the layers later so no need to name it.

Step 3
Make a selection using the ellipse selection tool. Fill it with black.

Step 4
Now click Select -> All and apply a gaussian blur to the circle layer.

Step 5
Merge the layers and apply Filters -> Distorts -> Newsprint. Experiment with cell sizes, spot funtions (round, line, etc.), and oversampling.


And there, you have a halftone circle.