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07-01-2020, 08:49 AM   #16
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Join Date: Oct 2013
Location: Kent
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I have a similar setup that I use although mine is a little more elaborate in the fact that it has 2 light detectors so that I can measure both curtains independently.

However I measure from the point where the trace starts to rise to the point where it starts to fall. I find by doing this it eliminates the rise and fall times and is easier to make sense of the traces for the fast shutter speeds. I have shown my system drawn in green on one of your original diagrams below.

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curtain, flash, light, me super, mm, scope, shutter, shutter speed, speeds, time, trace
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