Canon RE-350, Руководство по командам интерфейса управления

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Header ID number Command Parameter MSH Parameter LSH
Focus Near: Constant Speed
• Function:
Moves the focus lens in the near direction at a constant speed. This operation will be stopped with the reception of
the <Stop focusing> command or the focus lens reaches the near-end limit.
• Timing of the “C-response Packet” sent to the PC:
Right after the focus lens starts to move.
• The parameter of the “C-response Packet”:
$0000 fixed
• The maximum operation time (msec):
500 millisecond
• Command format:
$10 $ 8 * $1 2 $ 0 1 $ 0 0
Header ID number Command Parameter MSH Parameter LSH
$10 $ 8 * $ 1 0 $ 0 0 $ 0 0
OP AF (Operate Auto Focus)
• Function:
Perform AF once, finding out the best focused position.
• Timing of the “C-response Packet” sent to the PC:
Right after having found out the best focal point or, after a 6 second trial, having failed to find the best focal point.
• The parameter of the “C-response Packet”:
$0000 fixed
• The maximum operation time (msec):
20000 millisecond
• Command format:
3.2 Focus Commands