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3.6 Field and Frame Mode (FLD/FRM) 
 
 
Field Mode: 
 
Field/Frame mode switch is located on the rear panel.  In field mode, two adjacent horizontal lines are combined 
and scanned out as shown in figure 8 shown below.  There is one line offset between odd field and even field.  
The sensitivity in field mode is double for each field scanning (1/60 second). For any moving image capture, field 
mode is recommended in order to avoid the smearing phenomenon.  However, the resolution is only one field, not 
full frame resolution. 
 
Frame Mode: 
 
In frame mode, every other horizontal line is scanned out; this is different from field mode as described above.  
For odd field, line 1 is scanned out first.  For even field, line 2 is scanned first.  Each field has 1/30 second period.  
Both odd and even field combined will form a full frame, a period of 1/30 second.  For strobe, long-term 
integration, and non-moving image capturing, frame mode is recommended.  In order to obtain a full frame image, 
a frame grabber must be applied to capture the image.  It's difficult to distinguish the difference between field 
mode and frame mode on a standard TV monitor.  In frame mode, shutter function is disable.
 
 
 
 
Figure 8. Field and Frame Mode