Compur-Rapid flash sync M or X

[brucep]

I have an Angulon 90mm f6.8 in a compur-rapid shutter (number 7041674) but I can't find anything that tells me whether this is an M or X sync connector post. Does anyone know?

Thanks

[BrianShaw]

I would assume M.

[BrianShaw]

I could be wrong, though.

[BrianShaw]

You can always test by rigging up a strobe and looking through the lens when you fire it. If you see the flash it is X. If the flash goes off before the shutter opens than it is M

Alternatively, rig up a flash bulb and look through the lens.

[brucep]

You can always test by rigging up a strobe and looking through the lens when you fire it. If you see the flash it is X. If the flash goes off before the shutter opens than it is M

Alternatively, rig up a flash bulb and look through the lens.

It would appear to be X sync by the fact I still can't see properly!

[BrianShaw]

That wears off after a while. Ikm still blinKing from a shutter I tested a few months ago.