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I have a sequence that I use to create time-lapse on planets. The idea is to capture 10 seconds every 30s. It works reasonably well but I noticed that the timing is actually not reliable. The "Capture X seconds" routine waits for the disk writing operation before moving to the "Delay" routine, so the interval before captures are not consistent. This is especially pronounced when I run a AS3 process in the background while capturing.
I have also tried using subroutines but the result is the same. Please let me know if there is a more proper way to do this. But for now I think It would be great if the write can be made asynchronous and merged in the delay phase.
SEQUENCE
DELAY 1
LIVE MODE
SET COLOUR SPACE TO MONO8
SET OUTPUT FORMAT TO "SER file (*.ser)"
LOOP UNTIL LOCALTIME "8:00:00 PM"
SEQUENCE
FRAMETYPE Light
CAPTURE 10 SECONDS LIVE FRAMES
DELAY 20
END SEQUENCE
END LOOP
END SEQUENCE
the way to make the interval regular with the way things currently work is to use the 'Add a delay if these steps take less than <Minimum Duration>s' step - put your captures inside that step and set the minimum to 30s. The capture will run, including writing to disk and then the 'Add a delay' step will wait for the remaining part of the 30s total. It will still take longer than 30s if the capture + writing takes longer that 30s - in which case, set the minimum to a longer value to allow for the worst case of capture + writing out.
