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QFL(ASH)/SETFLA(SH)/FL(ASH) - Pre-flash control

QFLASH prints out the currently selected pre-flash time, measured in arbitrary units of about 1 microsecond. SETFLASH sets up this time. The actual flash is performed automatically prior to a GLANCE or RUN, or on demand using the FLASH command.

These commands are included for the sake of completeness. There is no flash lamp on the prime focus camera. (1,1,1)

Parameters

QFLASH requires none. SETFLASH requires the pre-flash time. If omitted, it will be prompted for. FLASH requires none since it uses the time previously set up by SETFLASH.

Examples

Adam:> SETFLASH 10

Adam:> FLASH

Notes

SETFLASH does no more than set a microcode variable governing the flash period. It performs no flash. To disable pre-flash give a zero flash time.

If the preset FLASH time is 0. FLASH does nothing. This is automatically set by the start-up procedure.