Nikon sb600 speedlight is it compatable with canon 5d?

Nikon sb600 speedlight is it compatable with canon 5d

You need to buy the dedicated Canon flash if you intend to use it on a Canon camera.

It always amazes me that people still want to mix and try to match camera gear from different companies. Keep Nikon with Nikon, Pentax with Pentax, Sony with Sony/Minolta, etc

Probably not because of the additional electical contacts of the two different systems. Canon ETTL uses a 1+4 pin system, with the flash fired from the main centre pin, but with metering function and curtain sync dealt with by the other four pins. Nikon iTTL uses a 1+3 pin system, where the flash is also fired from the centre pin, but the metering controlled off the other three pins. Problem is that these different pins overlap each other, and control different things on the two systems, and you end up with confusion.

Therefore while the fundamental means of operation are the same, you'd have to tape over the three additional contacts on an SB600 if you wanted it to fire (in manual mode only) on a 5D.

The TTL mode will not match. If you set the camera and the flash to their manual modes it might work.

I don't happen to have a Canon 5D, but I do have a G10.
I have a Nikon SB600.
I put them in manual mode. It works.