Create a new file, having 450x450px and 300dpi. Apply the next instrument
and the codes that are indicated below.
Take the following instrument now
and represent a circle of white color, like in the picture below.
Using the same instrument, picture now a circle of black color, like it is done in the image below.
Take the previous instrument to draw another circle with the shown parameters next picture.
Blending Options-Gradient Overlay
Gradient's parameters.
Apply again the next tool
to picture one more circle, looking exactly with the next one.
Blending Options-Gradient Overlay
Gradient's parameters.
Take the same instrument to represent a circle with the sizes from the next image.
Blending Options-Gradient Overlay
Gradient's parameters.
For your convenience, merge now in a group all the layers that contain the circles. Copy the recently made group 182 times (yes - exactly 182 times!)
Apply now Free Transform option to minimize the copies where it is necessary and don't forget to place out correctly the layers.
As a result we'll have the next:
Finished!
More Tutorials: 
