Re: p-TTL: works with pre-flash only?

[Bruce Rubenstein]

They probably just set the threshold for the slave high, so it wouldn't 
be sensitive enough to be tripped by the pre-fire flashes (they are low 
power flashes).

BR

[EMAIL PROTECTED] wrote:


I saw an advertisement for a flash that was primarily designed to augment
the flash on a point and shoot and had a built in slave that was triggered
by the camera's built in flash.  The thing that grabbed my attention was
that the add' suggested the flash was compatible with camera's using a
pre-flash.