VI Mode Shutter

4.4 VI Mode Shutter

On the rear panel mode switch SW3, set switches 1 and 2 to ON. At this point there will be no image output. When an external VI command is input, expo- sure will occur for the period of the command. This mode is only for non-inter- lace. The image quality may be lower due to timed exposures; use accordingly. Figure 4±4 shows the VI mode shutter timing.

Figure 4±4. VI Mode Shutter Timing

VI command

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Read out

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 Field

 

 

 

 

 

 

 

 

 

Field indicator output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

249 μs (PIA)

 

 

 

 

Integration time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Shutter monitor output

 

142 μs (PIH)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Using the Shutter Modes

4-5

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Image 31
Texas Instruments MC-780PIx manual ±4. VI Mode Shutter Timing