Nikon SB-50DX with Canon Rebel xsi 450

I need some advice on syncing a Nikon SB-50DX Speedlight with my Canon Rebel xsi (SD-450). I want to use the speedlight as a slave unit, but it is triggered by the pre-flash on the Canon Rebel and so fires before the shutter. Apparently, I the Rebel pre-flash can't be turned off, so is there a work around for this? I've looked at the wireless flash triggers, but none of them inlcude the SB-50DX as on the list of compatitable flashes (it is too lold to mention?).

Thanks

Joe

I would think any of the cheap radio triggers would still work with that old Nikon flash, assuming it's just the standard hot-shoe configuration.

I would go that route.

I would take a look at Yongnuo RF-602's. They're very cheap 2.4 GHz radiotriggers with decent range. You can just put the flash on the receiver hot shoe, mount the receiver on a stand or tripod and fire away. Full manual of course, but most prefer it that way. I use a lot of the older Nikon flashes, and the optical slave works very well if you use like one radiotrigger + receiver and fire the rest of the flashes optically. At the price of receivers it can't really hurt to buy a few extra though, and use optical as a backup or indoors.

Thanks gentlemen, much appreciated.

Okay, so I bought a remote trigger. It triggers the flash fine and seems to be in sync. BUT there are two problems. Putting the transmitter unit on hotshoe of the Canon EOS Rebel xsi (450) 1) disables the built-in flash and 2) disables the 1/60 shutter speed setting and puts it down between 1/5 and 1/20. I'd like to have the built-in fire, too, but I can work around that, if necessary. But such slow shutter speeds rule out all the shooting that I wanted to do with a remote flash. Is there a way to adress these issues, or just I just give up trying to use the Nikon speedlite?

Shoot manual.

I tried that, but apparently wasn't setting the shutter speed correctly. Just tried again and it works. Thanks!

Any way to keep the built-in engaged?

Which remote trigger did you get? I am currently shooting with a 450D and I have 2 SB-50DXs.