Concentric Circles?

Im having trouble making concentic circles. Can anyone teach me how to make these. I posted a picture for reference.
thanks!

Hi there,

You might try playing with the Transform Tool

If you make a circular selection, on its own layer, the same size as you canvas and stroke it, you can then copy this to a new layer and use the transform tool.

You can experiment with various settings so that you get some different results. If you do all of this in an action, you can then repeat the process very quickly to give large numbers of circles.

You should note however, that this method uses percentages, so that the circles will not be evenly spaced as they get smaller.

Here's a few examples of what I mean.

Hope this helps.

Hi.

Here's my method of creating evenly-spaced concentric circles:

(first, make sure you have a small brush size)
1. Grab the Elipse Tool (U) and select the "Paths" icon (top-left, on the tool options bar) in order to create one
2. make a circular path by holding down "shift" as you draw it
3. stroke the path with the brush tool (no pressure simulation)

now here's the catch:
4. select the path and use Free Transform (Ctrl+T) in this way:

- first, select the path and take a look at the X (or Y) boxes in the top left- they allow you to see by how many pixels you selection's center is off relative to the center of the image. remember one of those numbers (for example -20px)
-hold down Shift+Alt and scale the path to the size you want
-nowwhile still holding down the Shift key, release the Alt key (this disables the scale-by-percent-only feature and enables the "center" boxes we previously discussed)
-take a look at either X or Y boxes, and calculate the difference (in pixels) between the new number and the one before the scaling. (if it's a "nasty" difference...like 17.4, I recommend you adjust it-dragging the mouse-to be a full number)
-now press Alt (so you're holding both shift+alt again) and release mouse button, then enable transformation (hit Enter)

5. stroke new path (can be on same layer or not, it's up to your needs)

6. repeat this for as many times you want, keeping in mind always to scale the circles according to that "center difference" I explained.

Of course, you can use the path only once, to stroke the original circle and then clone that layer multiple times and scale it, but using the path for every circle, you'll ensure that all circles have the same line width (as opposed by merely scaling clones of a single layer, which causes the line to become thinner or thicker as you shrink or respectively enlarge the layer).

Well, I hope this was of help. If anything's unclear feel free to ask me.