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<blockquote data-quote="WayneF" data-source="post: 167272" data-attributes="member: 12496">SB-700 has a commander, but only for two remote groups.&nbsp; The internal flash commanders are only two remote groups also.&nbsp; Technically they have three groups, if including the builtin flash too - but only two remote groups.&nbsp;&nbsp; SU-800, SB-900/910, and SB-800 commanders have three remote groups, plus any builtin local flash group, if applicable.SU-800 does not add a sync port.&nbsp; A PC Sync port is for basic manual flash only anyway - iTTL is not possible and commander is not possible.&nbsp; Any remote iTTL requires a commander.&nbsp; Commander has to be on the camera (or connected via a hot shoe extension cord).It is can be argued that use of a $330 flash on-camera as a commander is less a bargain than using a $250 SU-800.&nbsp; Sort of wastes a flash, in that on-camera is not really where you want a flash to be.&nbsp;&nbsp; SU-800 uses invisible infrared commands, which is good (helps blinking), but there is a lot of bargain to be had with a free internal flash as commander (actually, internal commander has a bit more range than the infrared filtered SU-800).&nbsp; But... visible commands cause blinking.Note that adding any commander to a camera body without commander - does NOT add the FV LOCK feature to the camera, present in models with commander.&nbsp;&nbsp; FV LOCK prevents photos of the subject blinking from the commander flashes. This is a very serious issue.&nbsp;&nbsp; The invisible infrared SU-800 does help that very greatly (no visible commander flashing in subjects face), but the TTL remotes still do preflashes.&nbsp; FV Lock does all this before the shutter, and gets the blinking over with, saves the metering info, and then can do the shutter alone (no more commands or preflashes or blinking) at the subsequent shutter buttons.&nbsp; FV Lock is normally vital.There is a writeup about commander at <a href="http://www.scantips.com/lights/awl.html" target="_blank">Using the Nikon CLS Remote Wireless Flash System</a></blockquote>

[QUOTE="WayneF, post: 167272, member: 12496"] SB-700 has a commander, but only for two remote groups. The internal flash commanders are only two remote groups also. Technically they have three groups, if including the builtin flash too - but only two remote groups. SU-800, SB-900/910, and SB-800 commanders have three remote groups, plus any builtin local flash group, if applicable. SU-800 does not add a sync port. A PC Sync port is for basic manual flash only anyway - iTTL is not possible and commander is not possible. Any remote iTTL requires a commander. Commander has to be on the camera (or connected via a hot shoe extension cord). It is can be argued that use of a $330 flash on-camera as a commander is less a bargain than using a $250 SU-800. Sort of wastes a flash, in that on-camera is not really where you want a flash to be. SU-800 uses invisible infrared commands, which is good (helps blinking), but there is a lot of bargain to be had with a free internal flash as commander (actually, internal commander has a bit more range than the infrared filtered SU-800). But... visible commands cause blinking. Note that adding any commander to a camera body without commander - does NOT add the FV LOCK feature to the camera, present in models with commander. FV LOCK prevents photos of the subject blinking from the commander flashes. This is a very serious issue. The invisible infrared SU-800 does help that very greatly (no visible commander flashing in subjects face), but the TTL remotes still do preflashes. FV Lock does all this before the shutter, and gets the blinking over with, saves the metering info, and then can do the shutter alone (no more commands or preflashes or blinking) at the subsequent shutter buttons. FV Lock is normally vital. There is a writeup about commander at [URL="http://www.scantips.com/lights/awl.html"]Using the Nikon CLS Remote Wireless Flash System[/URL] [/QUOTE]

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