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I probably would have figured that out after my second cup of coffee. Thanks again, Tobias!

I'm still on my first cup of coffee for the day, but how about this: Assuming Tobias is correct and that the total duration of the HSS flashes are within a 1/250-second window, then I should be able...

That makes sense Tobias. I think you're probably right. Thanks.

...doug

Just a guess, but I would think the manufacturer would design a system in which the strobe was aware of the shutter speed so it didn't have to keep flashing once the shutter was fully closed. Big...

I need to dig into the wiring of HSS strobes. It's probably not something as simple as a contact closure, but it might be possible to control it with an Arduino or something like that. I fear you're...

That might work, Dan. 1/25 is probably ok. I'd like the option of faster speeds to manage the ambient light, but 1/25 is better than nothing at all!

Thanks for the links to Packard shutters. Might work. Need a bit more studying.

I'm using an Aero-Ektar 178mm f/2.5 barrel lens. Not mounted in a shutter.

I'm using an Aero-Ektar lens without a shutter.

I want to use a strobe in conjunction with the focal-plane shutter in my Speed Graphic. Normally, one uses slow-burn flashbulbs because the shutter has vertically sliding slots -- different widths...