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<blockquote data-quote="WayneF" data-source="post: 276607" data-attributes="member: 12496">Yes, internal flash set to minimum manual level should trigger the slaves without affecting the picture lighting. But some chance that slightly more than minimum may be needed if the slaves are not in direct sight (rotate their bodies to aim their sensor back at camera).Regarding an optical slave on the SB-600..&nbsp;&nbsp; It is special - its sync voltage is low, which powers the slave, and not all slaves can work on it (notably NOT the Wein Peanut Slave WEPN, which is one of the better and more sensitive slaves, but just not for the SB-600).&nbsp;&nbsp; See <a href="http://www.scantips.com/lights/slaves.html" target="_blank">Optical slave triggers for speedlights</a>There are three ways to trigger manual lights:1.&nbsp; PC sync cable2.&nbsp; Optical slaves3.&nbsp; Radio triggersUNLIKE Commander, these can be mixed...&nbsp; For example, one near light triggered with PC cord or radio trigger, which can trigger all the others via optical slave.&nbsp;&nbsp; If the camera is on a tripod, there is no issue with a PC sync cord to the near light (fill light needs to be near lens axis anyway).P.S.&nbsp; Probably already clear that the SB-910 and SB-50DX already have fine optical slaves built into them.It is SB-910 SU-4 mode.</blockquote>

[QUOTE="WayneF, post: 276607, member: 12496"] Yes, internal flash set to minimum manual level should trigger the slaves without affecting the picture lighting. But some chance that slightly more than minimum may be needed if the slaves are not in direct sight (rotate their bodies to aim their sensor back at camera). Regarding an optical slave on the SB-600.. It is special - its sync voltage is low, which powers the slave, and not all slaves can work on it (notably NOT the Wein Peanut Slave WEPN, which is one of the better and more sensitive slaves, but just not for the SB-600). See [URL="http://www.scantips.com/lights/slaves.html"]Optical slave triggers for speedlights[/URL] There are three ways to trigger manual lights: 1. PC sync cable 2. Optical slaves 3. Radio triggers UNLIKE Commander, these can be mixed... For example, one near light triggered with PC cord or radio trigger, which can trigger all the others via optical slave. If the camera is on a tripod, there is no issue with a PC sync cord to the near light (fill light needs to be near lens axis anyway). P.S. Probably already clear that the SB-910 and SB-50DX already have fine optical slaves built into them. It is SB-910 SU-4 mode. [/QUOTE]

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