>Anyone heard of the Nissin Di866 MkII Flash? I hear it is >very powerful. >Akiva S. > >Nikon F, FE, Nikkormat FTN, Nikon D7000, Leica M3 > I generally don't buy 3rd party products because of potential compatibility problems. I had a problem with a Sigma flash that had to be sent back to Sigma for a firmware upgrade to work with a D300. The Nissin is a little more powerful than the SB900 and should work fine with the D7000.
However it only supports iTTL for CLS Nikon bodies and manual mode. It does not support TTL mode and is not compatible with Nikon film bodies if that is important to you. The D600 and D800 support TTL mode for most Nikon film cameras and the D800 also supports Auto mode. It's interesting that the SB910 and D700 don't support TTL or A mode, both of which are important to me and why I never upgraded past my D600 and D800.