Take your lens off and watch the blades as you push the DOF button at
different apertures. At wide open they do not appear, so the image
shows up as a circle. As you step down the lens, the blades make the
familiar polygons (shape depends on # of blades).
Gregg
Acer Victoria wrote:
>
> But the shot was take with the lens wide open. The hilites are perfect
> circles, and quite distracting. In one other foto, the lens was stopped
> down, and the hilites are polygons.
>
> /Acer "steppenwolf" Victoria
> --
> goosnargh
>
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