As cheesey as it is, I've got some ideas for a few shots, and I need to use the stroboscopic mode. However stroboscopic mode on Nikon Speed lights (I've got the SB900 as commander and the rest of the remote speedlights just follow it) only lets you set each of the strobe intervals on manual power (i.e. 25 individual flashes, at 1/128th power, at 10hz). I'd like to set the very last flash to be a greater value (i.e. double or quadruple the interval power) effectively burning in the image for the last flash (but using lower powers for the intervals so they aren't as defined).
How would I go about doing this (and what equipment would I need)?
One thought is to trigger the stroboscopic mode manually by hand on slaves on a different channel/triggering mode (but Im unsure how I could do this for multiple units) and then let the camera TTL on rear sync ( using a separate group of slaves for the last blast) but how would this work if the subject has moved since the original preflash (if I'm correct the iTTL sends out the preflash before the shutter opens)?
How would I go about doing this (and what equipment would I need)?
One thought is to trigger the stroboscopic mode manually by hand on slaves on a different channel/triggering mode (but Im unsure how I could do this for multiple units) and then let the camera TTL on rear sync ( using a separate group of slaves for the last blast) but how would this work if the subject has moved since the original preflash (if I'm correct the iTTL sends out the preflash before the shutter opens)?
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