Spike Spread (K) - Sets how quickly Secondary Spikes will spread out as the distance increases from the highlight Secondary Spike Spread Control

Click the control or press K to activate.

The Spike Spread control, part of the Secondary Diffraction Spikes control group, allows you to make the Secondary Spikes diverge as the distance from the highlight increases.

Higher Spike Spread values make the Secondary Spikes spread more/faster.

Note that with this control turned all the way down the Secondary Spikes will stay equally sharp at all distances.