I don't know the answer but I can add a small data point. I discovered
last year that the 5D will not sync at its maximum of 1/200 sec. when
using a yabe radio slave trigger. It has to be slowed down to 1/160 sec
else one of the shutter curtains casts a small bit of shadow along one
edge of the frame. Now the difference there is 0.00125 seconds.
Doesn't sound like much but it's still 7-1/2% of an OM's 1/60 sec.
shutter speed. Who knows. Test it by firing the remote T32 with a
radio slave and also with a wire in the PC connector with the other T32
in the hot shoe.
Actually, I should be careful with the can't sync at max statement since
that was with Alien Bees. Studio flashes may behave differently with
respect to sync speed than portable flash units.
Dr. Flash
usher99@xxxxxxx 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.
> Mike
>
>
>
>
>
>
>
>
> Maybe I would if I could parse out the question. :-)
>
> Dr. Flash
>
>
> usher99@xxxxxxx wrote:
>> Hi Jeff!!!
>>
>> Hope things quiet down for you.
>>
>> I certainly noticed the absence of posts.
>>
>> I have used the T32 as off cam slave-triggered by yabe transmitter
> in
>> auto mode. It seemed to work best as a "room filler" often with a
>> diffuser at 45 deg. It always seemed weird to turn "up" the flash
> when
>> the flash sensor is 1 stop closer. In manual in fixed output the
> flash
>> obviously
>> would need to be reduced in power. Perhaps it just seems
>> counter-intuitive to me. When I had the OM hot shoe or stroboframe
>> main flash
>> in TTL, the main flash could quench too soon when the flashes
>> overlapped too much. I thought the transmitter electronics would not
>> be fast enough and there would be minor interaction. Some Nik
> flashes
>> have a "delay" mode just for this purpose when used as a slave. The
>> shutter speed needs to be at least one stop slower than synch. Not
>> sure I've seen that elsewhere.
>> Perhaps you or Dr. Flash will know.
>>
>>
>>
>>
> http://strobist.blogspot.com/2006/05/for-few-dollars-more-nikon-sb-26.html
>>
>> Mike
>>
>>
>>
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>>
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>>
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