Maximum Flash Sync Speed?

I just got a 430EX for use with an XTi. 430EX manual defers to the camera manual for the maximum flash sync speed. The XTi manual doesn't provide this information. Anyone know the fastest shutter speed I can use and still be in sync? Thanks in advance.

1/250. Put it in Manual and try to put up the shutter speed as high as you can. I'm almost positive it goes up to 1/250th.

grh wrote in post #2801251
The XTi manual doesn't provide this information.

Interesting. In other Canon instruction manuals, flash sync speed is listed in the index with a page reference. The spec is also listed in the back with the shutter specifications.

My guess would be 1/200, since that's what the RebelXT 350D is.

If you turn the flash on (HSS turned off), set the camera to Tv mode at something fairly fast (like maybe 1/500), then half-press the shutter button, the shutter speed indication in the viewfinder will change to flash sync speed.

350D_Noob wrote in post #2801394
1/250. Put it in Manual and try to put up the shutter speed as high as you can. I'm almost positive it goes up to 1/250th.

It is 1/200 second on the 400D (XTi). It is in the manual.

See:

http://www.dpreview.co​m …ws/canoneos400d​/page2.asp

Enjoy! Lon

1/200 it is! Thanks for the help! Geoff

grh wrote in post #2801960
1/200 it is! Thanks for the help! Geoff

The max sync speed is all over the manual. I'm surprised you didn't see it. But, yes, it's 1/200 as others have said.