Determining Field Dominance
 
 
 

The field dominance is whether the top field comes before or after the bottom field in time. The top field means the field which contains the highest vertical scanline to be displayed.

To set the field dominance:

  1. Set the format to either Non-NTSC or NTSC. If the format is NTSC the dominance will be labeled Upper First-Field 2 and Lower-First Field 1. If the format is Non-NTSC the labels will be Upper First-Field 1 and Lower First-Field 2.
  2. Set the value of the Dominance (upper or lower first).
  3. If you do not know the field dominance, you can press the Guess Dominance button and it will be determined for you. Keep in mind that this may take several seconds to analyze frames and may take even longer if the input has a long sequence of static frames before the action. To stop the analysis, press the Cancel Guess button.