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Message: <blockquote data-quote="WayneF" data-source="post: 281618" data-attributes="member: 12496">The YN560 is NOT TTL, and is also NOT compatible with the Nikon Commander.   It is a manual flash.  Cannot use the Commander with it, in any mode.   You could use it in a manual flash system, with all flashes set to manual mode, and no Commander.The Yongnuo YN565EX (price varies substantially, about $108 to $160) is TTL, and it includes the same remote wireless mode (for use  with Nikon Commander) as the SB-700 and SB-600 have.   See <a href="http://www.scantips.com/lights/yongnuo565.html" target="_blank">Review of the Yongnuo YN565EX Speedlight</a>So if using a Commander, yes, any of these three flashes (SB-600, SB-700, YN565EX) can be set to be Group A, B, or C for use with Nikon Commander.  But not the 560.However, the SB-700 commander can only individually control two remote groups A and B (which on SB-700 commander, must be same mode).  You can put two flashes into the same group (like A), but then you cannot control them individually... they both get the same signals.Normally for two remote TTL flashes with Commander, we put each into a different group (one A, and one B), so the camera can meter and control them individually.  Commander will then set them equal at the subject, and we use the compensation to adjust ratio, etc.BUT ----  if the SB-700 is the Commander connected to the camera, its own flash is another group (built-in flash), leaving groups A and B available for two remote flashes.  Since all SB-700 groups have to have the same mode (and I don't have one to be certain), when using two remote flashes, I don't know if it is possible to disable the built-in group like on other commanders?For manual flash use, the Yongnuo flashes have a S1 slave mode for MANUAL flash, like the SB-700 SU-4 mode.So manual flash would be no issue, but we really need a flash meter to set multiple manual flashes.</blockquote>

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