Hi,
I'm wondering if anyone may be able to help me. I am wanting to photograph the airflow over a turbine blade being tested in a wind tunnel, via the attachment of small cotton threads to its surface. The only way to isolate the blade is to use a stroboscope and I would like to then take a photo of this, so I have a record of the direction the cotton threads are being blown in.
I tried today without the strobe, and just using my flash gun. It wasn't too bad, but a little blurred still from the slow shutter speed. I've tried also using the bulb setting and letting the strobe pulse a few times hoping there would be enough light, but this wasn't very successful either.
If anyway has ever photographed this sort of thing and has some clues on what I should do, I would be very grateful.
Thanks in advance.