Stan,

I am not sure I follow you here. I have CF T* lenses that I use with my 500 CM and they all have shutters built into them and I can sync them at any shutter speed as I just did a portrait the other day syncing at 1/500th.

I also just sent a 150 CF lens in for repair and the shutter was replaced in the lens.

So I am not sure as to what you are saying buy saying the CF lenses have no shutter in them as all of mine do.