Default: 400 ms
Promote Control Focus Stacking involves changing your camera lens focal point via commands sent over USB. With select lens models, focusing may take longer than usual (commonly on some legacy close-up and macro lens models). If your Promote Control does not always successfully refocus when performing a Focus Stacking sequence, try increasing this setting until the problem is resolved.
This setting can also be set to a number lower than 400 milliseconds. Doing so is only recommended for very fast lenses with ultrasonic focus mechanism. If Focus Stacking starts having issues refocusing as intended, change this setting back to default value of 400 milliseconds, or higher as required.