The preflash issue with TTL modes in digital cams is a separate but
equal issue. The "delay" mode in the SB26 was designed to prevent
interactions when used as a slave with main flashes that had no
pre-flash. The SB26 will fire twice when used on can/nik with main
flash in TTL mode due to the pre-flash whether in delay or regular
mode. Perhaps a smart enough slave trigger exists to deal with both
issues though Dr. Flash's recommended experiment would be interesting
to see whether the yabe slaves do indeed induce a delay long enough to
prevent substantial interactions.
Mike
"Because most digital cameras have a series of rapid pre-flashes before
actually taking the shot, this flash is programed to only fire 200
milliseconds after the initial burst, making it compatible with most
digital camera models."
<http://www.bhphotovideo.com/c/product/213230-REG/Sunpak_018ST_Digital_Fl
ash.html#features>
Dr. Flash
Ken Norton wrote:
>> Errr, a bit convoluted, eh. I would agree. So, the question is:
does
>> the yabe radioslave trigger induce enough delay when triggering a T32
>> in auto mode to prevent major interactions with an on camera flash
in
>> TTL mode? My impression is that there is some possibly important
>> interaction when the sensed areas overlap, though this is based on a
>> small # of observations. Should be a testable hypothesis. Would be
>> interesting to have a slave flash with the delay mode.
>>
>
>
> The Ebay triggers are too fast to use in a delayed mode. I recall
seeing an
> flash-delay device which can be used to add an adjustable delay to a
flash.
>
> AG
>
>
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