Originally posted by mcgregni For these modes, if needing to free the shutter speed restrictions then switch the Camera Flash Mode to Slow-Speed Sync.... this is most effective indoors and in low light to create a true balance of ambient and flash exposures.
Thanks a lot Nigel for the point. With flash, I use the 'M' mode 99% of the time, so I did not pay much attention to the 'issue'.
I checked your suggestion and, with a real flash, it's just as you told: the speed is 'fixed' to 2 x focal length, but the speed is released when you set slow sync mode on camera (the only behabiour that has logic for me).
When I cheked the slow sync mode with the XProP I noticed no change on the speed regardless the camera flash mode, but I finally discovered that
I have to unset the HSS SYNC mode on the XProP, then the speed works as expected. You are limited to sync speeds, but it's good to know.
Again, thanks, my AD200 have increased it's value again
.
Regards.
BTW. Doesn't that comment belong to another thread?