Originally Posted by
Harold_4074
Need a high speed camera...
How about a slow camera and a fast measurement?
Make a cardboard disk (black with a white radial stripe) and spin it in a variable-speed drill. Photograph with your 60 fps video while you fire the bulb. The width of the blur will give you the flash duration in fractions of a rotation period, and the video will tell you what that period is.
Ignition delay may be more important than duration, but if you fire a strobe simultaneously with the bulb, you may be able to get a good estimate of that, too.
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